src/vm/jit/powerpc64/codegen.c

   1 /* src/vm/jit/powerpc64/codegen.c - machine code generator for 64-bit PowerPC
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    Contact: cacao@cacaojvm.org
  26
  27    Authors: Andreas Krall
  28             Stefan Ring
  29             Christian Thalinger
  30             Christian Ullrich
  31             Edwin Steiner
  32             Roland Lezuo
  33
  34    $Id: codegen.c 6286 2007-01-10 10:03:38Z twisti $
  35
  36 */
  37
  38
  39 #include "config.h"
  40
  41 #include <assert.h>
  42 #include <stdio.h>
  43 #include <signal.h>
  44
  45 #include "vm/types.h"
  46
  47 #include "md-abi.h"
  48 #include "vm/jit/abi-asm.h"
  49
  50 #include "vm/jit/powerpc64/arch.h"
  51 #include "vm/jit/powerpc64/codegen.h"
  52
  53 #include "mm/memory.h"
  54 #include "native/native.h"
  55 #include "vm/builtin.h"
  56 #include "vm/exceptions.h"
  57 #include "vm/global.h"
  58 #include "vm/loader.h"
  59 #include "vm/options.h"
  60 #include "vm/stringlocal.h"
  61 #include "vm/vm.h"
  62 #include "vm/jit/asmpart.h"
  63 #include "vm/jit/codegen-common.h"
  64 #include "vm/jit/dseg.h"
  65 #include "vm/jit/emit-common.h"
  66 #include "vm/jit/jit.h"
  67 #include "vm/jit/parse.h"
  68 #include "vm/jit/patcher.h"
  69 #include "vm/jit/reg.h"
  70 #include "vm/jit/replace.h"
  71
  72 #if defined(ENABLE_LSRA)
  73 # include "vm/jit/allocator/lsra.h"
  74 #endif
  75
  76
  77 /* codegen *********************************************************************
  78
  79    Generates machine code.
  80
  81 *******************************************************************************/
  82
  83 bool codegen(jitdata *jd)
  84 {
  85         methodinfo         *m;
  86         codeinfo           *code;
  87         codegendata        *cd;
  88         registerdata       *rd;
  89         s4                  len, s1, s2, s3, d, disp;
  90         ptrint              a;
  91         varinfo            *var;
  92         basicblock         *bptr;
  93         instruction        *iptr;
  94         exception_entry    *ex;
  95         u2                  currentline;
  96         methodinfo         *lm;             /* local methodinfo for ICMD_INVOKE*  */
  97         builtintable_entry *bte;
  98         methoddesc         *md;
  99         rplpoint           *replacementpoint;
 100         s4                  fieldtype;
 101         s4                  varindex;
 102         unresolved_field   *uf;
 103         fieldinfo          *fi;
 104
 105         /* get required compiler data */
 106
 107         m    = jd->m;
 108         code = jd->code;
 109         cd   = jd->cd;
 110         rd   = jd->rd;
 111
 112         /* prevent compiler warnings */
 113
 114         d = 0;
 115         lm = NULL;
 116         bte = NULL;
 117
 118         {
 119         s4 i, p, t, l;
 120         s4 savedregs_num;
 121
 122         savedregs_num = 0;
 123
 124         /* space to save used callee saved registers */
 125
 126         savedregs_num += (INT_SAV_CNT - rd->savintreguse);
 127         savedregs_num += (FLT_SAV_CNT - rd->savfltreguse);
 128
 129         cd->stackframesize = rd->memuse + savedregs_num;
 130
 131 #if defined(ENABLE_THREADS)
 132         /* space to save argument of monitor_enter and Return Values to survive */
 133     /* monitor_exit. The stack position for the argument can not be shared  */
 134         /* with place to save the return register on PPC64, since both values     */
 135         /* reside in R3 */
 136         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 137                 /* reserve 2 slots for long/double return values for monitorexit */
 138                 cd->stackframesize += 2;
 139         }
 140
 141 #endif
 142
 143         /* create method header */
 144
 145         /* align stack to 16-bytes */
 146
 147 /* FIXME */
 148 /*      if (!m->isleafmethod || opt_verbosecall) */
 149 /*              stackframesize = (stackframesize + 3) & ~3;
 150 */
 151 /*      else if (m->isleafmethod && (stackframesize == LA_WORD_SIZE)) */
 152 /*              stackframesize = 0; */
 153
 154         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
 155         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
 156
 157 #if defined(ENABLE_THREADS)
 158         /* IsSync contains the offset relative to the stack pointer for the
 159            argument of monitor_exit used in the exception handler. Since the
 160            offset could be zero and give a wrong meaning of the flag it is
 161            offset by one.
 162         */
 163
 164         if (checksync && (m->flags & ACC_SYNCHRONIZED))
 165                 (void) dseg_add_unique_s4(cd, (rd->memuse + 1) * 8);       /* IsSync          */
 166         else
 167 #endif
 168                 (void) dseg_add_unique_s4(cd, 0);                          /* IsSync          */
 169
 170         (void) dseg_add_unique_s4(cd, jd->isleafmethod);                /* IsLeaf          */
 171         (void) dseg_add_unique_s4(cd, INT_SAV_CNT - rd->savintreguse); /* IntSave         */
 172         (void) dseg_add_unique_s4(cd, FLT_SAV_CNT - rd->savfltreguse); /* FltSave         */
 173
 174         dseg_addlinenumbertablesize(cd);
 175
 176         (void) dseg_add_unique_s4(cd, jd->exceptiontablelength);       /* ExTableSize     */
 177
 178         /* create exception table */
 179
 180         for (ex = jd->exceptiontable; ex != NULL; ex = ex->down) {
 181                 dseg_add_target(cd, ex->start);
 182                 dseg_add_target(cd, ex->end);
 183                 dseg_add_target(cd, ex->handler);
 184                 (void) dseg_add_unique_address(cd, ex->catchtype.any);
 185         }
 186
 187         /* create stack frame (if necessary) */
 188
 189         if (!jd->isleafmethod) {
 190                 M_MFLR(REG_ZERO);
 191                 M_AST(REG_ZERO, REG_SP, LA_LR_OFFSET);
 192         }
 193
 194         if (cd->stackframesize)
 195                 M_STDU(REG_SP, REG_SP, -cd->stackframesize * 8);
 196
 197         /* save return address and used callee saved registers */
 198
 199         p = cd->stackframesize;
 200         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
 201                 p--; M_LST(rd->savintregs[i], REG_SP, p * 8);
 202         }
 203         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
 204                 p --; M_DST(rd->savfltregs[i], REG_SP, p * 8);
 205         }
 206
 207         /* take arguments out of register or stack frame */
 208
 209         md = m->parseddesc;
 210
 211         for (p = 0, l = 0; p < md->paramcount; p++) {
 212                 t = md->paramtypes[p].type;
 213                 varindex = jd->local_map[l*5 + t];
 214                 l++;
 215                 if (IS_2_WORD_TYPE(t))    /* increment local counter for 2 word types */
 216                         l++;
 217                 if (varindex == UNUSED)
 218                         continue;
 219                 var = VAR(varindex);
 220                 s1 = md->params[p].regoff;
 221                 if (IS_INT_LNG_TYPE(t)) {                    /* integer args          */
 222                         if (!md->params[p].inmemory) {           /* register arguments    */
 223                                 s2 = rd->argintregs[s1];
 224                                 if (!IS_INMEMORY(var->flags))   {
 225                                         M_INTMOVE(s2, var->vv.regoff);
 226                                 } else {                             /* reg arg -> spilled    */
 227                                         M_LST(s2, REG_SP, var->vv.regoff * 8);
 228                                 }
 229                         } else {                                 /* stack arguments       */
 230                                 if (!IS_INMEMORY(var->flags)) {      /* stack arg -> register */
 231                                         M_LLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 232
 233                                 } else {                             /* stack arg -> spilled  */
 234                                         var->vv.regoff = cd->stackframesize + s1;
 235                                 }
 236                         }
 237
 238                 } else {                                     /* floating args         */
 239                         if (!md->params[p].inmemory) {           /* register arguments    */
 240                                 s2 = rd->argfltregs[s1];
 241                                 if (!IS_INMEMORY(var->flags)) {      /* reg arg -> register   */
 242                                         M_FLTMOVE(s2, var->vv.regoff);
 243                                 } else {                                         /* reg arg -> spilled    */
 244                                         if (IS_2_WORD_TYPE(t)) {
 245                                                 M_DST(s2, REG_SP, var->vv.regoff * 8);
 246                                         } else {
 247                                                 M_DST(s2, REG_SP, var->vv.regoff * 8);  /*  F XXX */
 248                                         }
 249                                 }
 250
 251                         } else {                                 /* stack arguments       */
 252                                 if (!(var->flags & INMEMORY)) {      /* stack-arg -> register */
 253                                         if (IS_2_WORD_TYPE(t)) {
 254                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 255                                         } else {
 256                                                 M_DLD(var->vv.regoff, REG_SP, (cd->stackframesize + s1) * 8);
 257                                         }
 258                                 } else {                             /* stack-arg -> spilled  */
 259                                         var->vv.regoff = cd->stackframesize + s1;
 260                                 }
 261                         }
 262                 }
 263         } /* end for */
 264
 265         /* save monitorenter argument */
 266
 267 #if defined(ENABLE_THREADS)
 268
 269         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
 270
 271                 /* stackoffset for argument used for LOCK_monitor_exit */
 272                 s1 = rd->memuse;
 273 #if !defined (NDEBUG)
 274                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 275                         M_AADD_IMM(REG_SP, -((LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8), REG_SP);
 276
 277                         for (p = 0; p < INT_ARG_CNT; p++)
 278                                 M_LST(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 279
 280                         for (p = 0; p < FLT_ARG_CNT; p++)
 281                                 M_DST(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 282
 283                         /* used for LOCK_monitor_exit, adopt size because we created another stackframe */
 284                         s1 += (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT);
 285                 }
 286 #endif
 287                 p = dseg_add_functionptr(cd, LOCK_monitor_enter);
 288                 M_ALD(REG_ITMP3, REG_PV, p);
 289                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
 290                 M_MTCTR(REG_ITMP3);
 291
 292                 /* get or test the lock object */
 293
 294                 if (m->flags & ACC_STATIC) {
 295                         p = dseg_add_address(cd, &m->class->object.header);
 296                         M_ALD(rd->argintregs[0], REG_PV, p);
 297                 }
 298                 else {
 299                         M_TST(rd->argintregs[0]);
 300                         M_BEQ(0);
 301                         codegen_add_nullpointerexception_ref(cd);
 302                 }
 303
 304                 M_AST(rd->argintregs[0], REG_SP, s1 * 8);       /* rd->memuse * 8 */
 305                 M_JSR;
 306 #if !defined (NDEBUG)
 307                 if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
 308                         for (p = 0; p < INT_ARG_CNT; p++)
 309                                 M_LLD(rd->argintregs[p], REG_SP, LA_SIZE + PA_SIZE + p * 8);
 310
 311                         for (p = 0; p < FLT_ARG_CNT; p++)
 312                                 M_DLD(rd->argfltregs[p], REG_SP, LA_SIZE + PA_SIZE + (INT_ARG_CNT + p) * 8);
 313
 314                         M_AADD_IMM(REG_SP, (LA_SIZE_IN_POINTERS + PA_SIZE_IN_POINTERS + ARG_CNT) * 8, REG_SP);
 315                 }
 316 #endif
 317         }
 318 #endif
 319
 320         /* call trace function */
 321 #if !defined (NDEBUG)
 322         if (JITDATA_HAS_FLAG_VERBOSECALL(jd))
 323                 emit_verbosecall_enter(jd);
 324
 325         }
 326 #endif
 327
 328         /* end of header generation */
 329
 330         replacementpoint = jd->code->rplpoints;
 331
 332         /* walk through all basic blocks */
 333         for (bptr = jd->basicblocks; bptr != NULL; bptr = bptr->next) {
 334
 335                 bptr->mpc = (s4) (cd->mcodeptr - cd->mcodebase);
 336
 337                 if (bptr->flags >= BBREACHED) {
 338
 339                 /* branch resolving */
 340
 341                 {
 342                 branchref *brefs;
 343                 for (brefs = bptr->branchrefs; brefs != NULL; brefs = brefs->next) {
 344                         md_codegen_patch_branch(cd, brefs->branchpos, bptr->mpc);
 345                         }
 346                 }
 347
 348                 /* handle replacement points */
 349
 350 #if 0
 351                 if (bptr->bitflags & BBFLAG_REPLACEMENT) {
 352                         replacementpoint->pc = (u1*)(ptrint)bptr->mpc; /* will be resolved later */
 353
 354                         replacementpoint++;
 355                 }
 356 #endif
 357
 358                 /* copy interface registers to their destination */
 359
 360                 len = bptr->indepth;
 361                 MCODECHECK(64+len);
 362
 363 #if defined(ENABLE_LSRA)
 364                 if (opt_lsra) {
 365                         while (len) {
 366                                 len--;
 367                                 var = VAR(bptr->invars[len]);
 368                                 if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 369                                         /* d = reg_of_var(m, var, REG_ITMP1); */
 370                                         if (!(var->flags & INMEMORY))
 371                                                 d = var->vv.regoff;
 372                                         else
 373                                                 d = REG_ITMP1;
 374                                         M_INTMOVE(REG_ITMP1, d);
 375                                         emit_store(jd, NULL, var, d);
 376                                 }
 377                         }
 378                 } else {
 379 #endif
 380                 while (len) {
 381                         len--;
 382                         var = VAR(bptr->invars[len]);
 383                         if ((len == bptr->indepth-1) && (bptr->type == BBTYPE_EXH)) {
 384                                 d = codegen_reg_of_var(0, var, REG_ITMP1);
 385                                 M_INTMOVE(REG_ITMP1, d);
 386                                 emit_store(jd, NULL, var, d);
 387                         }
 388                         else {
 389                                 assert((var->flags & INOUT));
 390                         }
 391                 }
 392
 393 #if defined(ENABLE_LSRA)
 394                 }
 395 #endif
 396                 /* walk through all instructions */
 397
 398                 len = bptr->icount;
 399                 currentline = 0;
 400
 401                 for (iptr = bptr->iinstr; len > 0; len--, iptr++) {
 402                         bool sign_ext = false;
 403                         if (iptr->line != currentline) {
 404                                 dseg_addlinenumber(cd, iptr->line);
 405                                 currentline = iptr->line;
 406                         }
 407
 408                         MCODECHECK(64);   /* an instruction usually needs < 64 words      */
 409
 410                         switch (iptr->opc) {
 411                         case ICMD_NOP:    /* ...  ==> ...                                 */
 412                         case ICMD_INLINE_START:
 413                         case ICMD_INLINE_END:
 414                                 break;
 415
 416                 case ICMD_CHECKNULL:  /* ..., objectref  ==> ..., objectref           */
 417
 418                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 419                         M_TST(s1);
 420                         M_BEQ(0);
 421                         codegen_add_nullpointerexception_ref(cd);
 422                         break;
 423
 424                 /* constant operations ************************************************/
 425
 426                 case ICMD_ICONST:     /* ...  ==> ..., constant                       */
 427
 428                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 429                         ICONST(d, iptr->sx.val.i);
 430                         emit_store_dst(jd, iptr, d);
 431                         break;
 432
 433                 case ICMD_LCONST:     /* ...  ==> ..., constant                       */
 434
 435                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 436                         LCONST(d, iptr->sx.val.l);
 437                         emit_store_dst(jd, iptr, d);
 438                         break;
 439
 440                 case ICMD_FCONST:     /* ...  ==> ..., constant                       */
 441
 442                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 443                         a = dseg_add_float(cd, iptr->sx.val.f);
 444                         M_FLD(d, REG_PV, a);
 445                         emit_store_dst(jd, iptr, d);
 446                         break;
 447
 448                 case ICMD_DCONST:     /* ...  ==> ..., constant                       */
 449
 450                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
 451                         a = dseg_add_double(cd, iptr->sx.val.d);
 452                         M_DLD(d, REG_PV, a);
 453                         emit_store_dst(jd, iptr, d);
 454                         break;
 455
 456                 case ICMD_ACONST:     /* ...  ==> ..., constant                       */
 457                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 458                         disp = dseg_add_address(cd, iptr->sx.val.anyptr);
 459
 460                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
 461                                 codegen_addpatchref(cd, PATCHER_aconst,
 462                                                                         iptr->sx.val.c.ref,
 463                                                                     disp);
 464
 465                                 if (opt_showdisassemble)
 466                                         M_NOP;
 467                         }
 468
 469                         M_ALD(d, REG_PV, disp);
 470                         emit_store_dst(jd, iptr, d);
 471                         break;
 472
 473
 474                 /* load/store/copy/move operations ************************************/
 475
 476                 case ICMD_ILOAD:      /* ...  ==> ..., content of local variable      */
 477                 case ICMD_ALOAD:      /* s1.localindex = local variable               */
 478                 case ICMD_LLOAD:
 479                 case ICMD_FLOAD:      /* ...  ==> ..., content of local variable      */
 480                 case ICMD_DLOAD:      /* ...  ==> ..., content of local variable      */
 481                 case ICMD_ISTORE:     /* ..., value  ==> ...                          */
 482                 case ICMD_LSTORE:
 483                 case ICMD_FSTORE:     /* ..., value  ==> ...                          */
 484                 case ICMD_DSTORE:     /* ..., value  ==> ...                          */
 485                 case ICMD_COPY:
 486                 case ICMD_MOVE:
 487
 488                         emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 489                         break;
 490
 491                 case ICMD_ASTORE:
 492                         if (!(iptr->flags.bits & INS_FLAG_RETADDR))
 493                                 emit_copy(jd, iptr, VAROP(iptr->s1), VAROP(iptr->dst));
 494                         break;
 495
 496                 /* pop operations *****************************************************/
 497
 498                 /* attention: double and longs are only one entry in CACAO ICMDs      */
 499
 500                 case ICMD_POP:        /* ..., value  ==> ...                          */
 501                 case ICMD_POP2:       /* ..., value, value  ==> ...                   */
 502
 503                         break;
 504
 505
 506                 /* integer operations *************************************************/
 507
 508                 case ICMD_INEG:       /* ..., value  ==> ..., - value                 */
 509                         sign_ext = true;
 510                 case ICMD_LNEG:
 511                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 512                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 513                         M_NEG(s1, d);
 514                         if (sign_ext) M_EXTSW(d, d);
 515                         emit_store_dst(jd, iptr, d);
 516                         break;
 517
 518
 519                 case ICMD_I2L:        /* ..., value  ==> ..., value                   */
 520
 521                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 522                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 523                         M_INTMOVE(s1, d);
 524                         emit_store_dst(jd, iptr, d);
 525                         break;
 526
 527                 case ICMD_L2I:        /* ..., value  ==> ..., value                   */
 528
 529                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 530                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 531                         M_ISEXT(s1, d);
 532                         emit_store_dst(jd, iptr, d);
 533                         break;
 534
 535                 case ICMD_INT2BYTE:   /* ..., value  ==> ..., value                   */
 536
 537                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 538                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 539                         M_BSEXT(s1, d);
 540                         emit_store_dst(jd, iptr, d);
 541                         break;
 542
 543                 case ICMD_INT2CHAR:   /* ..., value  ==> ..., value                   */
 544
 545                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 546                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 547                         M_CZEXT(s1, d);
 548                         emit_store_dst(jd, iptr, d);
 549                         break;
 550
 551                 case ICMD_INT2SHORT:  /* ..., value  ==> ..., value                   */
 552
 553                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 554                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 555                         M_SSEXT(s1, d);
 556                         emit_store_dst(jd, iptr, d);
 557                         break;
 558
 559
 560                 case ICMD_IADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 561
 562                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 563                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 564                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 565                         M_IADD(s1, s2, d);
 566                         M_EXTSW(d,d);
 567                         emit_store_dst(jd, iptr, d);
 568                         break;
 569
 570                 case ICMD_IINC:
 571                 case ICMD_IADDCONST:
 572
 573                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 574                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 575                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767)) {
 576                                 M_IADD_IMM(s1, iptr->sx.val.i, d);
 577                         } else {
 578                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 579                                 M_IADD(s1, REG_ITMP2, d);
 580                         }
 581                         M_EXTSW(d,d);
 582                         emit_store_dst(jd, iptr, d);
 583                         break;
 584
 585                 case ICMD_LADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 586
 587                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 588                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 589                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 590                         M_LADD(s1, s2, d);
 591                         emit_store_dst(jd, iptr, d);
 592                         break;
 593
 594                 case ICMD_LADDCONST:  /* ..., value  ==> ..., value + constant        */
 595                                       /* sx.val.l = constant                          */
 596
 597                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 598                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 599                         /* XXX check me */
 600                         if ((iptr->sx.val.l >= -32768) && (iptr->sx.val.l <= 32767)) {
 601                                 M_LADD_IMM(s1, iptr->sx.val.l, d);
 602                         } else {
 603                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 604                                 M_LADD(s1, REG_ITMP2, d);
 605                         }
 606                         emit_store_dst(jd, iptr, d);
 607                         break;
 608
 609                 case ICMD_ISUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 610
 611                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 612                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 613                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 614                         M_SUB(s1, s2, d);
 615                         emit_store_dst(jd, iptr, d);
 616                         break;
 617
 618                 case ICMD_ISUBCONST:  /* ..., value  ==> ..., value + constant        */
 619                                       /* sx.val.i = constant                          */
 620
 621                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 622                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 623                         if ((iptr->sx.val.i >= -32767) && (iptr->sx.val.i <= 32768)) {
 624                                 M_IADD_IMM(s1, -iptr->sx.val.i, d);
 625                         } else {
 626                                 ICONST(REG_ITMP2, iptr->sx.val.i);
 627                                 M_SUB(s1, REG_ITMP2, d);
 628                         }
 629                         M_EXTSW(d, d);
 630                         emit_store_dst(jd, iptr, d);
 631                         break;
 632
 633                 case ICMD_LSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
 634
 635                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 636                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 637                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 638                         M_SUB(s1, s2, d);
 639                         emit_store_dst(jd, iptr, d);
 640                         break;
 641
 642                 case ICMD_LSUBCONST:  /* ..., value  ==> ..., value - constant        */
 643                                       /* sx.val.l = constant                          */
 644
 645                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 646                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 647                         /* XXX check me */
 648                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767)) {
 649                                 M_LADD_IMM(s1, -iptr->sx.val.l, d);
 650                         } else {
 651                                 LCONST(REG_ITMP2, iptr->sx.val.l);
 652                                 M_SUB(s1, REG_ITMP2, d);
 653                         }
 654                         emit_store_dst(jd, iptr, d);
 655                         break;
 656
 657                 case ICMD_IDIV:
 658                         sign_ext = true;
 659                 case ICMD_LDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
 660
 661                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 662                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 663                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 664                         M_TST(s2);
 665                         M_BEQ(0);
 666                         codegen_add_arithmeticexception_ref(cd);
 667
 668                         M_DIV(s1, s2, d);
 669                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 670                         /* we only need to check this if we did a LDIV, not for IDIV */
 671                         if (!sign_ext)  {
 672                                 M_MFXER(REG_ITMP2);
 673                                 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 674                                 M_BLE(1);
 675                                 M_MOV(s1, d);                           /* java specs says result == dividend */
 676                         }
 677                         if (sign_ext) M_EXTSW(d, d);
 678                         emit_store_dst(jd, iptr, d);
 679                         break;
 680
 681                 case ICMD_IREM:
 682                         sign_ext = true;
 683                 case ICMD_LREM:       /* ..., val1, val2  ==> ..., val1 % val2        */
 684                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 685                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 686                         M_TST(s2);
 687                         M_BEQ(0);
 688                         codegen_add_arithmeticexception_ref(cd);
 689
 690                         M_DIV(s1, s2,  REG_ITMP3);
 691                         /* we need to test if divident was 0x8000000000000, bit OV is set in XER in this case */
 692                         /* we only need to check this if we did a LDIV, not for IDIV */
 693                         if (!sign_ext)  {
 694                                 M_MFXER(REG_ITMP2);
 695                                 M_ANDIS(REG_ITMP2, 0x4000, REG_ITMP2);  /* test OV */
 696                                 M_BLE(2);
 697                                 LCONST(REG_ITMP3, 0);                   /* result == 0 in this case */
 698                                 M_BR(2);
 699                         }
 700                         M_MUL(REG_ITMP3, s2, REG_ITMP2);
 701                         M_SUB(s1, REG_ITMP2,  REG_ITMP3);
 702                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
 703
 704                         M_MOV(REG_ITMP3, d);
 705                         emit_store_dst(jd, iptr, REG_ITMP1);
 706                         break;
 707
 708
 709                 case ICMD_IMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
 710                         sign_ext = true;
 711                 case ICMD_LMUL:
 712                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 713                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 714                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 715                         M_MUL(s1, s2, d);
 716                         if (sign_ext) M_EXTSW(d, d);
 717                         emit_store_dst(jd, iptr, d);
 718                         break;
 719
 720                 case ICMD_IMULCONST:  /* ..., value  ==> ..., value * constant        */
 721                                       /* sx.val.i = constant                          */
 722
 723                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 724                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 725                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
 726                                 M_MUL_IMM(s1, iptr->sx.val.i, d);
 727                         else {
 728                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 729                                 M_MUL(s1, REG_ITMP3, d);
 730                         }
 731                         M_EXTSW(d, d);
 732                         emit_store_dst(jd, iptr, d);
 733                         break;
 734                 case ICMD_LMULCONST:
 735                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 736                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 737                         if ((iptr->sx.val.l >= -32767) && (iptr->sx.val.l <= 32767))
 738                                 M_MUL_IMM(s1, iptr->sx.val.l, d);
 739                         else {
 740                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 741                                 M_MUL(s1, REG_ITMP3, d);
 742                         }
 743                         emit_store_dst(jd, iptr, d);
 744                         break;
 745
 746                 case ICMD_IDIVPOW2:   /* ..., value  ==> ..., value << constant       */
 747
 748                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 749                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 750                         M_SRA_IMM(s1, iptr->sx.val.i, d);
 751                         M_ADDZE(d, d);
 752                         emit_store_dst(jd, iptr, d);
 753                         break;
 754
 755                 case ICMD_ISHL:       /* ..., val1, val2  ==> ..., val1 << val2       */
 756
 757                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 758                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 759                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 760                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 761                         M_SLL(s1, REG_ITMP3, d);
 762                         M_EXTSW(d, d);
 763                         emit_store_dst(jd, iptr, d);
 764                         break;
 765
 766                 case ICMD_ISHLCONST:  /* ..., value  ==> ..., value << constant       */
 767                                       /* sx.val.i = constant                             */
 768
 769                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 770                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 771                         M_SLL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 772                         M_EXTSW(d,d);
 773                         emit_store_dst(jd, iptr, d);
 774                         break;
 775
 776                 case ICMD_ISHR:       /* ..., val1, val2  ==> ..., val1 >> val2       */
 777
 778                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 779                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 780                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 781                         M_AND_IMM(s2, 0x1f, REG_ITMP3);
 782                         M_SRA(s1, REG_ITMP3, d);
 783                         emit_store_dst(jd, iptr, d);
 784                         break;
 785
 786                 case ICMD_ISHRCONST:  /* ..., value  ==> ..., value >> constant       */
 787                                       /* sx.val.i = constant                             */
 788
 789                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 790                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 791                         M_SRA_IMM(s1, iptr->sx.val.i & 0x1f, d);
 792                         emit_store_dst(jd, iptr, d);
 793                         break;
 794
 795                 case ICMD_IUSHR:      /* ..., val1, val2  ==> ..., val1 >>> val2      */
 796
 797                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 798                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 799                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 800                         M_AND_IMM(s2, 0x1f, REG_ITMP2);
 801                         M_SRL(s1, REG_ITMP2, d);
 802                         emit_store_dst(jd, iptr, d);
 803                         break;
 804
 805                 case ICMD_IUSHRCONST: /* ..., value  ==> ..., value >>> constant      */
 806                                       /* sx.val.i = constant                             */
 807
 808                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 809                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 810                         if (iptr->sx.val.i & 0x1f) {
 811                                 M_SRL_IMM(s1, iptr->sx.val.i & 0x1f, d);
 812                         } else {
 813                                 M_INTMOVE(s1, d);
 814                         }
 815                         emit_store_dst(jd, iptr, d);
 816                         break;
 817
 818                 case ICMD_IAND:       /* ..., val1, val2  ==> ..., val1 & val2        */
 819                 case ICMD_LAND:
 820
 821                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 822                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 823                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 824                         M_AND(s1, s2, d);
 825                         emit_store_dst(jd, iptr, d);
 826                         break;
 827
 828                 case ICMD_IANDCONST:  /* ..., value  ==> ..., value & constant        */
 829                                       /* sx.val.i = constant                          */
 830
 831                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 832                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 833                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535)) {
 834                                 M_AND_IMM(s1, iptr->sx.val.i, d);
 835                                 }
 836                         /*
 837                         else if (iptr->sx.val.i == 0xffffff) {
 838                                 M_RLWINM(s1, 0, 8, 31, d);
 839                                 }
 840                         */
 841                         else {
 842                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 843                                 M_AND(s1, REG_ITMP3, d);
 844                         }
 845                         emit_store_dst(jd, iptr, d);
 846                         break;
 847
 848                 case ICMD_LANDCONST:  /* ..., value  ==> ..., value & constant        */
 849                                       /* sx.val.l = constant                          */
 850
 851                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 852                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 853                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 854                                 M_AND_IMM(s1, iptr->sx.val.l, d);
 855                         /*
 856                         else if (iptr->sx.val.l == 0xffffff) {
 857                                 M_RLWINM(s1, 0, 8, 31, d);
 858                                 }
 859                         */
 860                         else {
 861                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 862                                 M_AND(s1, REG_ITMP3, d);
 863                         }
 864                         emit_store_dst(jd, iptr, d);
 865                         break;
 866
 867                 case ICMD_IREMPOW2:   /* ..., value  ==> ..., value % constant        */
 868                                       /* sx.val.i = constant                             */
 869                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 870                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 871                         M_MOV(s1, REG_ITMP2);
 872                         M_CMPI(s1, 0);
 873                         M_BGE(1 + 2*(iptr->sx.val.i >= 32768));
 874                         if (iptr->sx.val.i >= 32768) {
 875                                 M_ADDIS(REG_ZERO, iptr->sx.val.i >> 16, REG_ITMP2);
 876                                 M_OR_IMM(REG_ITMP2, iptr->sx.val.i, REG_ITMP2);
 877                                 M_IADD(s1, REG_ITMP2, REG_ITMP2);
 878                         } else {
 879                                 M_IADD_IMM(s1, iptr->sx.val.i, REG_ITMP2);
 880                         }
 881                         {
 882                                 int b=0, m = iptr->sx.val.i;
 883                                 while (m >>= 1)
 884                                         ++b;
 885                                 M_RLWINM(REG_ITMP2, 0, 0, 30-b, REG_ITMP2);
 886                         }
 887                         M_SUB(s1, REG_ITMP2, d);
 888                         M_EXTSW(d, d);
 889                         emit_store_dst(jd, iptr, d);
 890                         break;
 891
 892                 case ICMD_IOR:        /* ..., val1, val2  ==> ..., val1 | val2        */
 893                 case ICMD_LOR:
 894
 895                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 896                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 897                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 898                         M_OR(s1, s2, d);
 899                         emit_store_dst(jd, iptr, d);
 900                         break;
 901
 902                 case ICMD_IORCONST:   /* ..., value  ==> ..., value | constant        */
 903                                       /* sx.val.i = constant                          */
 904
 905                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 906                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 907                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 908                                 M_OR_IMM(s1, iptr->sx.val.i, d);
 909                         else {
 910                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 911                                 M_OR(s1, REG_ITMP3, d);
 912                         }
 913                         emit_store_dst(jd, iptr, d);
 914                         break;
 915
 916                 case ICMD_LORCONST:   /* ..., value  ==> ..., value | constant        */
 917                                       /* sx.val.l = constant                          */
 918
 919                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 920                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 921                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 922                                 M_OR_IMM(s1, iptr->sx.val.l, d);
 923                         else {
 924                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 925                                 M_OR(s1, REG_ITMP3, d);
 926                         }
 927                         emit_store_dst(jd, iptr, d);
 928                         break;
 929
 930
 931                 case ICMD_IXOR:       /* ..., val1, val2  ==> ..., val1 ^ val2        */
 932                 case ICMD_LXOR:
 933
 934                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 935                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 936                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 937                         M_XOR(s1, s2, d);
 938                         emit_store_dst(jd, iptr, d);
 939                         break;
 940
 941                 case ICMD_IXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 942                                       /* sx.val.i = constant                          */
 943
 944                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 945                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 946                         if ((iptr->sx.val.i >= 0) && (iptr->sx.val.i <= 65535))
 947                                 M_XOR_IMM(s1, iptr->sx.val.i, d);
 948                         else {
 949                                 ICONST(REG_ITMP3, iptr->sx.val.i);
 950                                 M_XOR(s1, REG_ITMP3, d);
 951                         }
 952                         emit_store_dst(jd, iptr, d);
 953                         break;
 954
 955                 case ICMD_LXORCONST:  /* ..., value  ==> ..., value ^ constant        */
 956                                       /* sx.val.l = constant                          */
 957
 958                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 959                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
 960                         if ((iptr->sx.val.l >= 0) && (iptr->sx.val.l <= 65535))
 961                                 M_XOR_IMM(s1, iptr->sx.val.l, d);
 962                         else {
 963                                 LCONST(REG_ITMP3, iptr->sx.val.l);
 964                                 M_XOR(s1, REG_ITMP3, d);
 965                         }
 966                         emit_store_dst(jd, iptr, d);
 967                         break;
 968
 969                 case ICMD_LCMP:       /* ..., val1, val2  ==> ..., val1 cmp val2      */
 970
 971                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
 972                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
 973                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP3);
 974                         /* XXX implement me!!! */
 975                         emit_store_dst(jd, iptr, d);
 976                         break;
 977                         break;
 978
 979
 980                 /* floating operations ************************************************/
 981
 982                 case ICMD_FNEG:       /* ..., value  ==> ..., - value                 */
 983
 984                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 985                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 986                         M_FMOVN(s1, d);
 987                         emit_store_dst(jd, iptr, d);
 988                         break;
 989
 990                 case ICMD_DNEG:       /* ..., value  ==> ..., - value                 */
 991
 992                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
 993                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
 994                         M_FMOVN(s1, d);
 995                         emit_store_dst(jd, iptr, d);
 996                         break;
 997
 998                 case ICMD_FADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
 999
1000                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1001                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1002                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1003                         M_FADD(s1, s2, d);
1004                         emit_store_dst(jd, iptr, d);
1005                         break;
1006
1007                 case ICMD_DADD:       /* ..., val1, val2  ==> ..., val1 + val2        */
1008
1009                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1010                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1011                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1012                         M_DADD(s1, s2, d);
1013                         emit_store_dst(jd, iptr, d);
1014                         break;
1015
1016                 case ICMD_FSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1017
1018                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1019                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1020                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1021                         M_FSUB(s1, s2, d);
1022                         emit_store_dst(jd, iptr, d);
1023                         break;
1024
1025                 case ICMD_DSUB:       /* ..., val1, val2  ==> ..., val1 - val2        */
1026
1027                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1028                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1029                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1030                         M_DSUB(s1, s2, d);
1031                         emit_store_dst(jd, iptr, d);
1032                         break;
1033
1034                 case ICMD_FMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1035
1036                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1037                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1038                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1039                         M_FMUL(s1, s2, d);
1040                         emit_store_dst(jd, iptr, d);
1041                         break;
1042
1043                 case ICMD_DMUL:       /* ..., val1, val2  ==> ..., val1 * val2        */
1044
1045                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1046                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1047                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1048                         M_DMUL(s1, s2, d);
1049                         emit_store_dst(jd, iptr, d);
1050                         break;
1051
1052                 case ICMD_FDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1053
1054                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1055                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1056                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1057                         M_FDIV(s1, s2, d);
1058                         emit_store_dst(jd, iptr, d);
1059                         break;
1060
1061                 case ICMD_DDIV:       /* ..., val1, val2  ==> ..., val1 / val2        */
1062
1063                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1064                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1065                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1066                         M_DDIV(s1, s2, d);
1067                         emit_store_dst(jd, iptr, d);
1068                         break;
1069
1070                 case ICMD_F2I:       /* ..., value  ==> ..., (int) value              */
1071                 case ICMD_D2I:
1072
1073                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1074                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1075                         M_CLR(d);
1076                         disp = dseg_add_float(cd, 0.0);
1077                         M_FLD(REG_FTMP2, REG_PV, disp);
1078                         M_FCMPU(s1, REG_FTMP2);
1079                         M_BNAN(4);
1080                         disp = dseg_add_unique_s4(cd, 0);
1081                         M_CVTDL_C(s1, REG_FTMP1);
1082                         M_LDA(REG_ITMP1, REG_PV, disp);
1083                         M_STFIWX(REG_FTMP1, 0, REG_ITMP1);
1084                         M_ILD(d, REG_PV, disp);
1085                         emit_store_dst(jd, iptr, d);
1086                         break;
1087
1088                 case ICMD_F2D:       /* ..., value  ==> ..., (double) value           */
1089
1090                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1091                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1092                         M_FLTMOVE(s1, d);
1093                         emit_store_dst(jd, iptr, d);
1094                         break;
1095
1096                 case ICMD_D2F:       /* ..., value  ==> ..., (double) value           */
1097
1098                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1099                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP3);
1100                         M_CVTDF(s1, d);
1101                         emit_store_dst(jd, iptr, d);
1102                         break;
1103
1104                 case ICMD_FCMPL:      /* ..., val1, val2  ==> ..., val1 fcmpg val2    */
1105                 case ICMD_DCMPL:      /* == => 0, < => 1, > => -1                     */
1106
1107
1108                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1109                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1110                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1111                         M_FCMPU(s2, s1);
1112                         M_IADD_IMM(REG_ZERO, -1, d);
1113                         M_BNAN(4);
1114                         M_BGT(3);
1115                         M_IADD_IMM(REG_ZERO, 0, d);
1116                         M_BGE(1);
1117                         M_IADD_IMM(REG_ZERO, 1, d);
1118                         emit_store_dst(jd, iptr, d);
1119                         break;
1120
1121                 case ICMD_FCMPG:      /* ..., val1, val2  ==> ..., val1 fcmpl val2    */
1122                 case ICMD_DCMPG:      /* == => 0, < => 1, > => -1                     */
1123
1124                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1125                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1126                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP1);
1127                         M_FCMPU(s1, s2);
1128                         M_IADD_IMM(REG_ZERO, 1, d);
1129                         M_BNAN(4);
1130                         M_BGT(3);
1131                         M_IADD_IMM(REG_ZERO, 0, d);
1132                         M_BGE(1);
1133                         M_IADD_IMM(REG_ZERO, -1, d);
1134                         emit_store_dst(jd, iptr, d);
1135                         break;
1136
1137                 case ICMD_IF_FCMPEQ:    /* ..., value, value ==> ...                  */
1138                 case ICMD_IF_DCMPEQ:
1139
1140                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1141                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1142                         M_FCMPU(s1, s2);
1143                         M_BNAN(1);
1144                         M_BEQ(0);
1145                         codegen_addreference(cd, iptr->dst.block);
1146                         break;
1147
1148                 case ICMD_IF_FCMPNE:    /* ..., value, value ==> ...                  */
1149                 case ICMD_IF_DCMPNE:
1150
1151                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1152                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1153                         M_FCMPU(s1, s2);
1154                         M_BNAN(0);
1155                         codegen_addreference(cd, iptr->dst.block);
1156                         M_BNE(0);
1157                         codegen_addreference(cd, iptr->dst.block);
1158                         break;
1159
1160
1161                 case ICMD_IF_FCMPL_LT:  /* ..., value, value ==> ...                  */
1162                 case ICMD_IF_DCMPL_LT:
1163
1164                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1165                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1166                         M_FCMPU(s1, s2);
1167                         M_BNAN(0);
1168                         codegen_addreference(cd, iptr->dst.block);
1169                         M_BLT(0);
1170                         codegen_addreference(cd, iptr->dst.block);
1171                         break;
1172
1173                 case ICMD_IF_FCMPL_GT:  /* ..., value, value ==> ...                  */
1174                 case ICMD_IF_DCMPL_GT:
1175
1176                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1177                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1178                         M_FCMPU(s1, s2);
1179                         M_BNAN(1);
1180                         M_BGT(0);
1181                         codegen_addreference(cd, iptr->dst.block);
1182                         break;
1183
1184                 case ICMD_IF_FCMPL_LE:  /* ..., value, value ==> ...                  */
1185                 case ICMD_IF_DCMPL_LE:
1186
1187                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1188                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1189                         M_FCMPU(s1, s2);
1190                         M_BNAN(0);
1191                         codegen_addreference(cd, iptr->dst.block);
1192                         M_BLE(0);
1193                         codegen_addreference(cd, iptr->dst.block);
1194                         break;
1195
1196                 case ICMD_IF_FCMPL_GE:  /* ..., value, value ==> ...                  */
1197                 case ICMD_IF_DCMPL_GE:
1198
1199                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1200                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1201                         M_FCMPU(s1, s2);
1202                         M_BNAN(1);
1203                         M_BGE(0);
1204                         codegen_addreference(cd, iptr->dst.block);
1205                         break;
1206
1207                 case ICMD_IF_FCMPG_LT:  /* ..., value, value ==> ...                  */
1208                 case ICMD_IF_DCMPG_LT:
1209
1210                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1211                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1212                         M_FCMPU(s1, s2);
1213                         M_BNAN(1);
1214                         M_BLT(0);
1215                         codegen_addreference(cd, iptr->dst.block);
1216                         break;
1217
1218                 case ICMD_IF_FCMPG_GT:  /* ..., value, value ==> ...                  */
1219                 case ICMD_IF_DCMPG_GT:
1220
1221                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1222                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1223                         M_FCMPU(s1, s2);
1224                         M_BNAN(0);
1225                         codegen_addreference(cd, iptr->dst.block);
1226                         M_BGT(0);
1227                         codegen_addreference(cd, iptr->dst.block);
1228                         break;
1229
1230                 case ICMD_IF_FCMPG_LE:  /* ..., value, value ==> ...                  */
1231                 case ICMD_IF_DCMPG_LE:
1232
1233                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1234                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1235                         M_FCMPU(s1, s2);
1236                         M_BNAN(1);
1237                         M_BLE(0);
1238                         codegen_addreference(cd, iptr->dst.block);
1239                         break;
1240
1241                 case ICMD_IF_FCMPG_GE:  /* ..., value, value ==> ...                  */
1242                 case ICMD_IF_DCMPG_GE:
1243
1244                         s1 = emit_load_s1(jd, iptr, REG_FTMP1);
1245                         s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1246                         M_FCMPU(s1, s2);
1247                         M_BNAN(0);
1248                         codegen_addreference(cd, iptr->dst.block);
1249                         M_BGE(0);
1250                         codegen_addreference(cd, iptr->dst.block);
1251                         break;
1252
1253
1254                 /* memory operations **************************************************/
1255
1256                 case ICMD_ARRAYLENGTH: /* ..., arrayref  ==> ..., length              */
1257
1258                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1259                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1260                         gen_nullptr_check(s1);
1261                         M_ILD(d, s1, OFFSET(java_arrayheader, size));
1262                         emit_store_dst(jd, iptr, d);
1263                         break;
1264
1265                 case ICMD_BALOAD:     /* ..., arrayref, index  ==> ..., value         */
1266
1267                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1268                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1269                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1270                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1271                                 gen_nullptr_check(s1);
1272                                 gen_bound_check;
1273                         }
1274                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1275                         M_LBZX(d, s1, REG_ITMP2);
1276                         M_BSEXT(d, d);
1277                         emit_store_dst(jd, iptr, d);
1278                         break;
1279
1280                 case ICMD_CALOAD:     /* ..., arrayref, index  ==> ..., value         */
1281
1282                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1283                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1284                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1285                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1286                                 gen_nullptr_check(s1);
1287                                 gen_bound_check;
1288                         }
1289                         M_SLL_IMM(s2, 1, REG_ITMP2);
1290                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1291                         M_LHAX(d, s1, REG_ITMP2);
1292                         emit_store_dst(jd, iptr, d);
1293                         break;
1294
1295                 case ICMD_SALOAD:     /* ..., arrayref, index  ==> ..., value         */
1296
1297                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1298                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1299                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1300                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1301                                 gen_nullptr_check(s1);
1302                                 gen_bound_check;
1303                         }
1304                         M_SLL_IMM(s2, 1, REG_ITMP2);
1305                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1306                         M_LHAX(d, s1, REG_ITMP2);
1307                         emit_store_dst(jd, iptr, d);
1308                         break;
1309
1310                 case ICMD_IALOAD:     /* ..., arrayref, index  ==> ..., value         */
1311
1312                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1313                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1314                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1315                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1316                                 gen_nullptr_check(s1);
1317                                 gen_bound_check;
1318                         }
1319                         M_SLL_IMM(s2, 2, REG_ITMP2);
1320                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1321                         M_LWZX(d, s1, REG_ITMP2);
1322                         emit_store_dst(jd, iptr, d);
1323                         break;
1324
1325                 case ICMD_LALOAD:     /* ..., arrayref, index  ==> ..., value         */
1326
1327                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1328                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1329                         d = codegen_reg_of_dst(jd, iptr, PACK_REGS(REG_ITMP2, REG_ITMP1));
1330                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1331                                 gen_nullptr_check(s1);
1332                                 gen_bound_check;
1333                         }
1334                         M_SLL_IMM(s2, 3, REG_ITMP2);
1335                         M_IADD(s1, REG_ITMP2, REG_ITMP2);
1336                         M_LLD_INTERN(d, REG_ITMP2, OFFSET(java_longarray, data[0]));
1337                         emit_store_dst(jd, iptr, d);
1338                         break;
1339
1340                 case ICMD_FALOAD:     /* ..., arrayref, index  ==> ..., value         */
1341
1342                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1343                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1344                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1345                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1346                                 gen_nullptr_check(s1);
1347                                 gen_bound_check;
1348                         }
1349                         M_SLL_IMM(s2, 2, REG_ITMP2);
1350                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1351                         M_LFSX(d, s1, REG_ITMP2);
1352                         emit_store_dst(jd, iptr, d);
1353                         break;
1354
1355                 case ICMD_DALOAD:     /* ..., arrayref, index  ==> ..., value         */
1356
1357                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1358                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1359                         d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1360                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1361                                 gen_nullptr_check(s1);
1362                                 gen_bound_check;
1363                         }
1364                         M_SLL_IMM(s2, 3, REG_ITMP2);
1365                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1366                         M_LFDX(d, s1, REG_ITMP2);
1367                         emit_store_dst(jd, iptr, d);
1368                         break;
1369
1370                 case ICMD_AALOAD:     /* ..., arrayref, index  ==> ..., value         */
1371
1372                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1373                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1374                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1375                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1376                                 gen_nullptr_check(s1);
1377                                 gen_bound_check;
1378                         }
1379                         M_SLL_IMM(s2, 3, REG_ITMP2);
1380                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1381                         M_ALDX(d, s1, REG_ITMP2);
1382                         emit_store_dst(jd, iptr, d);
1383                         break;
1384
1385
1386                 case ICMD_BASTORE:    /* ..., arrayref, index, value  ==> ...         */
1387
1388                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1389                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1390                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1391                                 gen_nullptr_check(s1);
1392                                 gen_bound_check;
1393                         }
1394                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1395                         M_IADD_IMM(s2, OFFSET(java_bytearray, data[0]), REG_ITMP2);
1396                         M_STBX(s3, s1, REG_ITMP2);
1397                         break;
1398
1399                 case ICMD_CASTORE:    /* ..., arrayref, index, value  ==> ...         */
1400
1401                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1402                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1403                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1404                                 gen_nullptr_check(s1);
1405                                 gen_bound_check;
1406                         }
1407                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1408                         M_SLL_IMM(s2, 1, REG_ITMP2);
1409                         M_IADD_IMM(REG_ITMP2, OFFSET(java_chararray, data[0]), REG_ITMP2);
1410                         M_STHX(s3, s1, REG_ITMP2);
1411                         break;
1412
1413                 case ICMD_SASTORE:    /* ..., arrayref, index, value  ==> ...         */
1414
1415                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1416                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1417                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1418                                 gen_nullptr_check(s1);
1419                                 gen_bound_check;
1420                         }
1421                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1422                         M_SLL_IMM(s2, 1, REG_ITMP2);
1423                         M_IADD_IMM(REG_ITMP2, OFFSET(java_shortarray, data[0]), REG_ITMP2);
1424                         M_STHX(s3, s1, REG_ITMP2);
1425                         break;
1426
1427                 case ICMD_IASTORE:    /* ..., arrayref, index, value  ==> ...         */
1428
1429                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1430                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1431                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1432                                 gen_nullptr_check(s1);
1433                                 gen_bound_check;
1434                         }
1435                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1436                         M_SLL_IMM(s2, 2, REG_ITMP2);
1437                         M_IADD_IMM(REG_ITMP2, OFFSET(java_intarray, data[0]), REG_ITMP2);
1438                         M_STWX(s3, s1, REG_ITMP2);
1439                         break;
1440
1441                 case ICMD_LASTORE:    /* ..., arrayref, index, value  ==> ...         */
1442
1443                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1444                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1445                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1446                                 gen_nullptr_check(s1);
1447                                 gen_bound_check;
1448                         }
1449                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1450                         M_SLL_IMM(s2, 3, REG_ITMP2);
1451                         M_IADD_IMM(REG_ITMP2, OFFSET(java_longarray, data[0]), REG_ITMP2);
1452                         M_LSTX(s3, s1, REG_ITMP2);
1453                         break;
1454
1455                 case ICMD_FASTORE:    /* ..., arrayref, index, value  ==> ...         */
1456
1457                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1458                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1459                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1460                                 gen_nullptr_check(s1);
1461                                 gen_bound_check;
1462                         }
1463                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1464                         M_SLL_IMM(s2, 2, REG_ITMP2);
1465                         M_IADD_IMM(REG_ITMP2, OFFSET(java_floatarray, data[0]), REG_ITMP2);
1466                         M_STFSX(s3, s1, REG_ITMP2);
1467                         break;
1468
1469                 case ICMD_DASTORE:    /* ..., arrayref, index, value  ==> ...         */
1470
1471                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1472                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1473                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1474                                 gen_nullptr_check(s1);
1475                                 gen_bound_check;
1476                         }
1477                         s3 = emit_load_s3(jd, iptr, REG_FTMP3);
1478                         M_SLL_IMM(s2, 3, REG_ITMP2);
1479                         M_IADD_IMM(REG_ITMP2, OFFSET(java_doublearray, data[0]), REG_ITMP2);
1480                         M_STFDX(s3, s1, REG_ITMP2);
1481                         break;
1482
1483                 case ICMD_AASTORE:    /* ..., arrayref, index, value  ==> ...         */
1484
1485                         s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
1486                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1487                         if (INSTRUCTION_MUST_CHECK(iptr)) {
1488                                 gen_nullptr_check(s1);
1489                                 gen_bound_check;
1490                         }
1491                         s3 = emit_load_s3(jd, iptr, rd->argintregs[1]);
1492
1493                         disp = dseg_add_functionptr(cd, BUILTIN_canstore);
1494                         M_ALD(REG_ITMP3, REG_PV, disp);
1495                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1496                         M_MTCTR(REG_ITMP3);
1497
1498                         M_INTMOVE(s1, rd->argintregs[0]);
1499                         M_INTMOVE(s3, rd->argintregs[1]);
1500
1501                         M_JSR;
1502                         M_TST(REG_RESULT);
1503                         M_BEQ(0);
1504                         codegen_add_arraystoreexception_ref(cd);
1505
1506                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1507                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1508                         s3 = emit_load_s3(jd, iptr, REG_ITMP3);
1509                         M_SLL_IMM(s2, 3, REG_ITMP2);
1510                         M_IADD_IMM(REG_ITMP2, OFFSET(java_objectarray, data[0]), REG_ITMP2);
1511                         M_ASTX(s3, s1, REG_ITMP2);
1512                         break;
1513
1514
1515                 case ICMD_GETSTATIC:  /* ...  ==> ..., value                          */
1516
1517                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1518                                 uf = iptr->sx.s23.s3.uf;
1519
1520                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1521                                 disp = dseg_add_unique_address(cd, NULL);
1522
1523                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1524                                                                         iptr->sx.s23.s3.uf, disp);
1525
1526                         } else {
1527                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1528
1529                                 fieldtype = fi->type;
1530                                 disp = dseg_add_address(cd, &(fi->value));
1531
1532                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1533                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1534                                 }
1535                         }
1536
1537                         M_ALD(REG_ITMP1, REG_PV, disp);
1538                         switch (fieldtype) {
1539                         case TYPE_INT:
1540                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1541                                 M_ILD_INTERN(d, REG_ITMP1, 0);
1542                                 break;
1543                         case TYPE_LNG:
1544                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1545                                 M_LLD(d, REG_ITMP1, 0);
1546                                 break;
1547                         case TYPE_ADR:
1548                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1549                                 M_ALD_INTERN(d, REG_ITMP1, 0);
1550                                 break;
1551                         case TYPE_FLT:
1552                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1553                                 M_FLD_INTERN(d, REG_ITMP1, 0);
1554                                 break;
1555                         case TYPE_DBL:
1556                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1557                                 M_DLD_INTERN(d, REG_ITMP1, 0);
1558                                 break;
1559                         }
1560                         emit_store_dst(jd, iptr, d);
1561                         break;
1562
1563                 case ICMD_PUTSTATIC:  /* ..., value  ==> ...                          */
1564
1565
1566                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1567                                 uf = iptr->sx.s23.s3.uf;
1568
1569                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1570                                 disp = dseg_add_unique_address(cd, NULL);
1571
1572                                 codegen_addpatchref(cd, PATCHER_get_putstatic,
1573                                                                         iptr->sx.s23.s3.uf, disp);
1574                         } else {
1575                                 fieldinfo *fi = iptr->sx.s23.s3.fmiref->p.field;
1576
1577                                 fieldtype = fi->type;
1578                                 disp = dseg_add_address(cd, &(fi->value));
1579
1580                                 if (!CLASS_IS_OR_ALMOST_INITIALIZED(fi->class)) {
1581                                         codegen_addpatchref(cd, PATCHER_clinit, fi->class, disp);
1582                                 }
1583                         }
1584
1585                         M_ALD(REG_ITMP1, REG_PV, disp);
1586                         switch (fieldtype) {
1587                         case TYPE_INT:
1588                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1589                                 M_IST_INTERN(s1, REG_ITMP1, 0);
1590                                 break;
1591                         case TYPE_LNG:
1592                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1593                                 M_LST_INTERN(s1, REG_ITMP1, 0);
1594                                 break;
1595                         case TYPE_ADR:
1596                                 s1 = emit_load_s1(jd, iptr, REG_ITMP2);
1597                                 M_AST_INTERN(s1, REG_ITMP1, 0);
1598                                 break;
1599                         case TYPE_FLT:
1600                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1601                                 M_FST_INTERN(s1, REG_ITMP1, 0);
1602                                 break;
1603                         case TYPE_DBL:
1604                                 s1 = emit_load_s1(jd, iptr, REG_FTMP2);
1605                                 M_DST_INTERN(s1, REG_ITMP1, 0);
1606                                 break;
1607                         }
1608                         break;
1609
1610
1611                 case ICMD_GETFIELD:   /* ...  ==> ..., value                          */
1612
1613                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1614                         gen_nullptr_check(s1);
1615
1616                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1617                                 uf = iptr->sx.s23.s3.uf;
1618                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1619                                 disp = 0;
1620
1621                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1622
1623                                 if (opt_showdisassemble)
1624                                         M_NOP;
1625
1626                         } else {
1627                                 fi = iptr->sx.s23.s3.fmiref->p.field;
1628                                 fieldtype = fi->type;
1629                                 disp = fi->offset;
1630                         }
1631
1632                         switch (fieldtype) {
1633                         case TYPE_INT:
1634                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1635                                 M_ILD(d, s1, disp);
1636                                 break;
1637                         case TYPE_LNG:
1638                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1639                                 M_LLD(d, s1, disp);
1640                                 break;
1641                         case TYPE_ADR:
1642                                 d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
1643                                 M_ALD(d, s1, disp);
1644                                 break;
1645                         case TYPE_FLT:
1646                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1647                                 M_FLD(d, s1, disp);
1648                                 break;
1649                         case TYPE_DBL:
1650                                 d = codegen_reg_of_dst(jd, iptr, REG_FTMP1);
1651                                 M_DLD(d, s1, disp);
1652                                 break;
1653                         }
1654                         emit_store_dst(jd, iptr, d);
1655                         break;
1656
1657                 case ICMD_PUTFIELD:   /* ..., value  ==> ...                          */
1658
1659                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1660                         gen_nullptr_check(s1);
1661
1662                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1663                                 uf        = iptr->sx.s23.s3.uf;
1664                                 fieldtype = uf->fieldref->parseddesc.fd->type;
1665                                 disp      = 0;
1666                         }
1667                         else {
1668                                 fi        = iptr->sx.s23.s3.fmiref->p.field;
1669                                 fieldtype = fi->type;
1670                                 disp      = fi->offset;
1671                         }
1672
1673                         if (IS_INT_LNG_TYPE(fieldtype)) {
1674                                 s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1675                         }
1676                         else
1677                                 s2 = emit_load_s2(jd, iptr, REG_FTMP2);
1678
1679                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1680                                 codegen_addpatchref(cd, PATCHER_get_putfield, uf, 0);
1681
1682                                 if (opt_showdisassemble)
1683                                         M_NOP;
1684                         }
1685
1686
1687                         switch (fieldtype) {
1688                         case TYPE_INT:
1689                                 M_IST(s2, s1, disp);
1690                                 break;
1691                         case TYPE_LNG:
1692                                 M_LST(s2, s1, disp);
1693                                 break;
1694                         case TYPE_ADR:
1695                                 M_AST(s2, s1, disp);
1696                                 break;
1697                         case TYPE_FLT:
1698                                 M_FST(s2, s1, disp);
1699                                 break;
1700                         case TYPE_DBL:
1701                                 M_DST(s2, s1, disp);
1702                                 break;
1703                         }
1704                         break;
1705
1706
1707                 /* branch operations **************************************************/
1708
1709                 case ICMD_ATHROW:       /* ..., objectref ==> ... (, objectref)       */
1710
1711                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1712                         M_LNGMOVE(s1, REG_ITMP1_XPTR);
1713
1714 #ifdef ENABLE_VERIFIER
1715                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1716                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1717                                                                         iptr->sx.s23.s2.uc, 0);
1718
1719                                 if (opt_showdisassemble)
1720                                         M_NOP;
1721                         }
1722 #endif /* ENABLE_VERIFIER */
1723
1724                         disp = dseg_add_functionptr(cd, asm_handle_exception);
1725                         M_ALD(REG_ITMP2, REG_PV, disp);
1726                         M_MTCTR(REG_ITMP2);
1727
1728                         if (jd->isleafmethod) M_MFLR(REG_ITMP3);         /* save LR        */
1729                         M_BL(0);                                        /* get current PC */
1730                         M_MFLR(REG_ITMP2_XPC);
1731                         if (jd->isleafmethod) M_MTLR(REG_ITMP3);         /* restore LR     */
1732                         M_RTS;                                          /* jump to CTR    */
1733
1734                         ALIGNCODENOP;
1735                         break;
1736
1737                 case ICMD_GOTO:         /* ... ==> ...                                */
1738                 case ICMD_RET:          /* ... ==> ...                                */
1739
1740                         M_BR(0);
1741                         codegen_addreference(cd, iptr->dst.block);
1742                         ALIGNCODENOP;
1743                         break;
1744
1745                 case ICMD_JSR:          /* ... ==> ...                                */
1746
1747                         M_BR(0);
1748                         codegen_addreference(cd, iptr->sx.s23.s3.jsrtarget.block);
1749                         ALIGNCODENOP;
1750                         break;
1751
1752                 case ICMD_IFNULL:       /* ..., value ==> ...                         */
1753
1754                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1755                         M_TST(s1);
1756                         M_BEQ(0);
1757                         codegen_addreference(cd, iptr->dst.block);
1758                         break;
1759
1760                 case ICMD_IFNONNULL:    /* ..., value ==> ...                         */
1761
1762                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1763                         M_TST(s1);
1764                         M_BNE(0);
1765                         codegen_addreference(cd, iptr->dst.block);
1766                         break;
1767
1768                 case ICMD_IFLT:
1769                 case ICMD_IFLE:
1770                 case ICMD_IFNE:
1771                 case ICMD_IFGT:
1772                 case ICMD_IFGE:
1773                 case ICMD_IFEQ:         /* ..., value ==> ...                         */
1774
1775                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1776                         if ((iptr->sx.val.i >= -32768) && (iptr->sx.val.i <= 32767))
1777                                 M_CMPI(s1, iptr->sx.val.i);
1778                         else {
1779                                 ICONST(REG_ITMP2, iptr->sx.val.i);
1780                                 M_CMP(s1, REG_ITMP2);
1781                         }
1782                         switch (iptr->opc) {
1783                         case ICMD_IFLT:
1784                                 M_BLT(0);
1785                                 break;
1786                         case ICMD_IFLE:
1787                                 M_BLE(0);
1788                                 break;
1789                         case ICMD_IFNE:
1790                                 M_BNE(0);
1791                                 break;
1792                         case ICMD_IFGT:
1793                                 M_BGT(0);
1794                                 break;
1795                         case ICMD_IFGE:
1796                                 M_BGE(0);
1797                                 break;
1798                         case ICMD_IFEQ:
1799                                 M_BEQ(0);
1800                                 break;
1801                         }
1802                         codegen_addreference(cd, iptr->dst.block);
1803                         break;
1804
1805                 case ICMD_IF_LEQ:       /* ..., value ==> ...                         */
1806                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1807                         LCONST(REG_ITMP2, iptr->sx.val.l);
1808                         M_CMP(s1, REG_ITMP2);
1809                         M_BEQ(0);
1810                         codegen_addreference(cd, iptr->dst.block);
1811                         break;
1812                 case ICMD_IF_LLT:       /* ..., value ==> ...                         */
1813                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1814                         LCONST(REG_ITMP2, iptr->sx.val.l);
1815                         M_CMP(s1, REG_ITMP2);
1816                         M_BLT(0);
1817                         codegen_addreference(cd, iptr->dst.block);
1818                         break;
1819                 case ICMD_IF_LLE:       /* ..., value ==> ...                         */
1820                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1821                         LCONST(REG_ITMP2, iptr->sx.val.l);
1822                         M_CMP(s1, REG_ITMP2);
1823                         M_BLE(0);
1824                         codegen_addreference(cd, iptr->dst.block);
1825                         break;
1826
1827                 case ICMD_IF_LNE:       /* ..., value ==> ... */
1828                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1829                         LCONST(REG_ITMP2, iptr->sx.val.l);
1830                         M_CMP(s1, REG_ITMP2);
1831                         M_BNE(0);
1832                         codegen_addreference(cd, iptr->dst.block);
1833                         break;
1834                 case ICMD_IF_LGE:       /* ..., value ==> ... */
1835                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1836                         LCONST(REG_ITMP2, iptr->sx.val.l);
1837                         M_CMP(s1, REG_ITMP2);
1838                         M_BGE(0);
1839                         codegen_addreference(cd, iptr->dst.block);
1840                         break;
1841                 case ICMD_IF_LGT:       /* ..., value ==> ...                         */
1842                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1843                         LCONST(REG_ITMP2, iptr->sx.val.l);
1844                         M_CMP(s1, REG_ITMP2);
1845                         M_BGT(0);
1846                         codegen_addreference(cd, iptr->dst.block);
1847                         break;
1848                 case ICMD_IF_ICMPEQ:    /* ..., value, value ==> ...                  */
1849                 case ICMD_IF_ACMPEQ:    /* op1 = target JavaVM pc                     */
1850                 case ICMD_IF_LCMPEQ:
1851
1852                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1853                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1854                         M_CMP(s1, s2);
1855                         M_BEQ(0);
1856                         codegen_addreference(cd, iptr->dst.block);
1857                         break;
1858
1859                 case ICMD_IF_ICMPNE:    /* ..., value, value ==> ...                  */
1860                 case ICMD_IF_ACMPNE:    /* op1 = target JavaVM pc                     */
1861                 case ICMD_IF_LCMPNE:
1862
1863                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1864                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1865                         M_CMP(s1, s2);
1866                         M_BNE(0);
1867                         codegen_addreference(cd, iptr->dst.block);
1868                         break;
1869
1870
1871                 case ICMD_IF_ICMPLT:    /* ..., value, value ==> ...                  */
1872                 case ICMD_IF_LCMPLT:
1873
1874                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1875                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1876                         M_CMP(s1, s2);
1877                         M_BLT(0);
1878                         codegen_addreference(cd, iptr->dst.block);
1879                         break;
1880
1881                 case ICMD_IF_ICMPGT:    /* ..., value, value ==> ...                  */
1882                 case ICMD_IF_LCMPGT:
1883
1884                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1885                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1886                         M_CMP(s1, s2);
1887                         M_BGT(0);
1888                         codegen_addreference(cd, iptr->dst.block);
1889                         break;
1890
1891                 case ICMD_IF_ICMPLE:    /* ..., value, value ==> ...                  */
1892                 case ICMD_IF_LCMPLE:
1893
1894                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1895                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1896                         M_CMP(s1, s2);
1897                         M_BLE(0);
1898                         codegen_addreference(cd, iptr->dst.block);
1899                         break;
1900
1901                 case ICMD_IF_ICMPGE:    /* ..., value, value ==> ...                  */
1902                 case ICMD_IF_LCMPGE:
1903
1904                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
1905                         s2 = emit_load_s2(jd, iptr, REG_ITMP2);
1906                         M_CMP(s1, s2);
1907                         M_BGE(0);
1908                         codegen_addreference(cd, iptr->dst.block);
1909                         break;
1910
1911
1912                 case ICMD_LRETURN:      /* ..., retvalue ==> ...                      */
1913                 case ICMD_IRETURN:      /* ..., retvalue ==> ...                      */
1914
1915                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1916                         M_LNGMOVE(s1, REG_RESULT);
1917                         goto nowperformreturn;
1918
1919                 case ICMD_ARETURN:      /* ..., retvalue ==> ...                      */
1920
1921                         s1 = emit_load_s1(jd, iptr, REG_RESULT);
1922                         M_LNGMOVE(s1, REG_RESULT);
1923
1924 #ifdef ENABLE_VERIFIER
1925                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
1926                                 codegen_addpatchref(cd, PATCHER_athrow_areturn,
1927                                                                         iptr->sx.s23.s2.uc, 0);
1928
1929                                 if (opt_showdisassemble)
1930                                         M_NOP;
1931                         }
1932 #endif /* ENABLE_VERIFIER */
1933
1934                         goto nowperformreturn;
1935
1936                 case ICMD_FRETURN:      /* ..., retvalue ==> ...                      */
1937                 case ICMD_DRETURN:
1938
1939                         s1 = emit_load_s1(jd, iptr, REG_FRESULT);
1940                         M_FLTMOVE(s1, REG_FRESULT);
1941                         goto nowperformreturn;
1942
1943                 case ICMD_RETURN:      /* ...  ==> ...                                */
1944
1945 nowperformreturn:
1946                         {
1947                         s4 i, p;
1948
1949                         p = cd->stackframesize;
1950
1951                         /* call trace function */
1952
1953 #if !defined(NDEBUG)
1954                         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
1955                                 emit_verbosecall_exit(jd);
1956                         }
1957 #endif
1958
1959 #if defined(ENABLE_THREADS)
1960                         if (checksync && (m->flags & ACC_SYNCHRONIZED)) {
1961                                 disp = dseg_add_functionptr(cd, LOCK_monitor_exit);
1962                                 M_ALD(REG_ITMP3, REG_PV, disp);
1963                                 M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
1964                                 M_MTCTR(REG_ITMP3);
1965
1966                                 /* we need to save the proper return value */
1967
1968                                 switch (iptr->opc) {
1969                                 case ICMD_LRETURN:
1970                                 case ICMD_IRETURN:
1971                                 case ICMD_ARETURN:
1972                                         /* fall through */
1973                                         M_LST(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1974                                         break;
1975                                 case ICMD_FRETURN:
1976                                         M_FST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1977                                         break;
1978                                 case ICMD_DRETURN:
1979                                         M_DST(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1980                                         break;
1981                                 }
1982
1983                                 M_ALD(rd->argintregs[0], REG_SP, rd->memuse * 8);
1984                                 M_JSR;
1985
1986                                 /* and now restore the proper return value */
1987
1988                                 switch (iptr->opc) {
1989                                 case ICMD_LRETURN:
1990                                 case ICMD_IRETURN:
1991                                 case ICMD_ARETURN:
1992                                         /* fall through */
1993                                         M_LLD(REG_RESULT , REG_SP, rd->memuse * 8 + 8);
1994                                         break;
1995                                 case ICMD_FRETURN:
1996                                         M_FLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
1997                                         break;
1998                                 case ICMD_DRETURN:
1999                                         M_DLD(REG_FRESULT, REG_SP, rd->memuse * 8 + 8);
2000                                         break;
2001                                 }
2002                         }
2003 #endif
2004
2005                         /* restore return address                                         */
2006
2007                         if (!jd->isleafmethod) {
2008                                 /* ATTENTION: Don't use REG_ZERO (r0) here, as M_ALD
2009                                    may have a displacement overflow. */
2010
2011                                 M_ALD(REG_ITMP1, REG_SP, p * 8 + LA_LR_OFFSET);
2012                                 M_MTLR(REG_ITMP1);
2013                         }
2014
2015                         /* restore saved registers                                        */
2016
2017                         for (i = INT_SAV_CNT - 1; i >= rd->savintreguse; i--) {
2018                                 p--; M_LLD(rd->savintregs[i], REG_SP, p * 8);
2019                         }
2020                         for (i = FLT_SAV_CNT - 1; i >= rd->savfltreguse; i--) {
2021                                 p--; M_DLD(rd->savfltregs[i], REG_SP, p * 8);
2022                         }
2023
2024                         /* deallocate stack                                               */
2025
2026                         if (cd->stackframesize)
2027                                 M_LDA(REG_SP, REG_SP, cd->stackframesize * 8);
2028
2029                         M_RET;
2030                         ALIGNCODENOP;
2031                         }
2032                         break;
2033
2034
2035                 case ICMD_TABLESWITCH:  /* ..., index ==> ...                         */
2036                         {
2037                         s4 i, l;
2038                         branch_target_t *table;
2039
2040                         table = iptr->dst.table;
2041
2042                         l = iptr->sx.s23.s2.tablelow;
2043                         i = iptr->sx.s23.s3.tablehigh;
2044
2045                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2046                         if (l == 0) {
2047                                 M_INTMOVE(s1, REG_ITMP1);
2048                         } else if (l <= 32768) {
2049                                 M_LDA(REG_ITMP1, s1, -l);
2050                         } else {
2051                                 ICONST(REG_ITMP2, l);
2052                                 M_SUB(s1, REG_ITMP2, REG_ITMP1);
2053                         }
2054
2055                         /* number of targets */
2056                         i = i - l + 1;
2057
2058                         /* range check */
2059
2060                         M_CMPUI(REG_ITMP1, i - 1);
2061                         M_BGT(0);
2062                         codegen_addreference(cd, table[0].block);
2063
2064                         /* build jump table top down and use address of lowest entry */
2065
2066                         table += i;
2067
2068                         while (--i >= 0) {
2069                                 dseg_add_target(cd, table->block);
2070                                 --table;
2071                                 }
2072                         }
2073
2074                         /* length of dataseg after last dseg_add_unique_target is used by load */
2075
2076                         M_SLL_IMM(REG_ITMP1, 3, REG_ITMP1);
2077                         M_IADD(REG_ITMP1, REG_PV, REG_ITMP2);
2078                         M_ALD(REG_ITMP2, REG_ITMP2, -(cd->dseglen));
2079                         M_MTCTR(REG_ITMP2);
2080                         M_RTS;
2081                         ALIGNCODENOP;
2082                         break;
2083
2084
2085                 case ICMD_LOOKUPSWITCH: /* ..., key ==> ...                           */
2086                         {
2087                         s4 i, val;
2088                         lookup_target_t *lookup;
2089
2090                         lookup = iptr->dst.lookup;
2091
2092                         i = iptr->sx.s23.s2.lookupcount;
2093
2094                         MCODECHECK((i<<2)+8);
2095                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2096                         while (--i >= 0) {
2097                                 val = lookup->value;
2098                                 if ((val >= -32768) && (val <= 32767)) {
2099                                         M_CMPI(s1, val);
2100                                 } else {
2101                                         a = dseg_add_s4(cd, val);
2102                                         M_ILD(REG_ITMP2, REG_PV, a);
2103                                         M_CMP(s1, REG_ITMP2);
2104                                 }
2105                                 M_BEQ(0);
2106                                 codegen_addreference(cd, lookup->target.block);
2107                                 ++lookup;
2108                         }
2109
2110                         M_BR(0);
2111                         codegen_addreference(cd, iptr->sx.s23.s3.lookupdefault.block);
2112
2113                         ALIGNCODENOP;
2114                         break;
2115                         }
2116
2117
2118                 case ICMD_BUILTIN:      /* ..., [arg1, [arg2 ...]] ==> ...            */
2119
2120                         bte = iptr->sx.s23.s3.bte;
2121                         md = bte->md;
2122                         goto gen_method;
2123
2124                 case ICMD_INVOKESTATIC: /* ..., [arg1, [arg2 ...]] ==> ...            */
2125                 case ICMD_INVOKESPECIAL:/* ..., objectref, [arg1, [arg2 ...]] ==> ... */
2126                 case ICMD_INVOKEVIRTUAL:/* op1 = arg count, val.a = method pointer    */
2127                 case ICMD_INVOKEINTERFACE:
2128
2129                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2130                                 md = iptr->sx.s23.s3.um->methodref->parseddesc.md;
2131                                 lm = NULL;
2132                         }
2133                         else {
2134                                 lm = iptr->sx.s23.s3.fmiref->p.method;
2135                                 md = lm->parseddesc;
2136                         }
2137
2138 gen_method:
2139                         s3 = md->paramcount;
2140
2141                         MCODECHECK((s3 << 1) + 64);
2142
2143                         /* copy arguments to registers or stack location */
2144
2145                         for (s3 = s3 - 1; s3 >= 0; s3--) {
2146                                 var = VAR(iptr->sx.s23.s2.args[s3]);
2147
2148                                 if (var->flags & PREALLOC)
2149                                         continue;
2150
2151                                 if (IS_INT_LNG_TYPE(var->type)) {
2152                                         if (!md->params[s3].inmemory) {
2153                                                 s1 = rd->argintregs[md->params[s3].regoff];
2154                                                 d = emit_load(jd, iptr, var, s1);
2155                                                 M_LNGMOVE(d, s1);
2156                                         } else {
2157                                                 d = emit_load(jd, iptr, var, REG_ITMP1);
2158                                                 M_LST(d, REG_SP, md->params[s3].regoff * 8);
2159                                         }
2160                                 } else {
2161                                         if (!md->params[s3].inmemory) {
2162                                                 s1 = rd->argfltregs[md->params[s3].regoff];
2163                                                 d = emit_load(jd, iptr, var, s1);
2164                                                 M_FLTMOVE(d, s1);
2165                                         } else {
2166                                                 d = emit_load(jd, iptr, var, REG_FTMP1);
2167                                                 if (IS_2_WORD_TYPE(var->type))
2168                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);
2169                                                 else
2170                                                         M_DST(d, REG_SP, md->params[s3].regoff * 8);    /* F XXX */
2171                                         }
2172                                 }
2173                         } /* end of for */
2174
2175                         switch (iptr->opc) {
2176                         case ICMD_BUILTIN:
2177                                 disp = dseg_add_functionptr(cd, bte->fp);
2178                                 d = md->returntype.type;
2179
2180                                 M_ALD(REG_PV, REG_PV, disp);    /* pointer to built-in-function descriptor */
2181                                 M_ALD(REG_ITMP1, REG_PV, 0);    /* function entry point address, what about TOC */
2182                                 M_MTCTR(REG_ITMP1);
2183                                 M_JSR;
2184
2185                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2186                                 M_MFLR(REG_ITMP1);
2187                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2188
2189
2190                                 if (INSTRUCTION_MUST_CHECK(iptr)) {
2191                                         M_CMPI(REG_RESULT, 0);
2192                                         M_BEQ(0);
2193                                         codegen_add_fillinstacktrace_ref(cd);
2194                                 }
2195                                 break;
2196
2197                         case ICMD_INVOKESPECIAL:
2198                                 gen_nullptr_check(rd->argintregs[0]);
2199                                 M_ILD(REG_ITMP1, rd->argintregs[0], 0); /* hardware nullptr   */
2200                                 /* fall through */
2201
2202                         case ICMD_INVOKESTATIC:
2203                                 if (lm == NULL) {
2204                                         unresolved_method *um = iptr->sx.s23.s3.um;
2205
2206                                         disp = dseg_add_unique_address(cd, NULL);
2207
2208                                         codegen_addpatchref(cd, PATCHER_invokestatic_special,
2209                                                                                 um, disp);
2210
2211                                         if (opt_showdisassemble)
2212                                                 M_NOP;
2213
2214                                         d = md->returntype.type;
2215
2216                                 } else {
2217                                         disp = dseg_add_address(cd, lm->stubroutine);
2218                                         d = md->returntype.type;
2219                                 }
2220
2221                                 M_NOP;
2222                                 M_ALD(REG_PV, REG_PV, disp);
2223                                 M_MTCTR(REG_PV);
2224                                 M_JSR;
2225                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2226                                 M_MFLR(REG_ITMP1);
2227                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2228                                 break;
2229
2230                         case ICMD_INVOKEVIRTUAL:
2231                                 gen_nullptr_check(rd->argintregs[0]);
2232
2233                                 if (lm == NULL) {
2234                                         unresolved_method *um = iptr->sx.s23.s3.um;
2235
2236                                         codegen_addpatchref(cd, PATCHER_invokevirtual, um, 0);
2237
2238                                         if (opt_showdisassemble)
2239                                                 M_NOP;
2240
2241                                         s1 = 0;
2242                                         d = md->returntype.type;
2243
2244                                 } else {
2245                                         s1 = OFFSET(vftbl_t, table[0]) +
2246                                                 sizeof(methodptr) * lm->vftblindex;
2247                                         d = md->returntype.type;
2248                                 }
2249
2250                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2251                                           OFFSET(java_objectheader, vftbl));
2252                                 M_ALD(REG_PV, REG_METHODPTR, s1);
2253                                 M_MTCTR(REG_PV);
2254                                 M_JSR;
2255                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2256                                 M_MFLR(REG_ITMP1);
2257                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2258                                 break;
2259
2260                         case ICMD_INVOKEINTERFACE:
2261                                 gen_nullptr_check(rd->argintregs[0]);
2262
2263                                 if (lm == NULL) {
2264                                         unresolved_method *um = iptr->sx.s23.s3.um;
2265
2266                                         codegen_addpatchref(cd, PATCHER_invokeinterface, um, 0);
2267
2268                                         if (opt_showdisassemble)
2269                                                 M_NOP;
2270
2271                                         s1 = 0;
2272                                         s2 = 0;
2273                                         d = md->returntype.type;
2274
2275                                 } else {
2276                                         s1 = OFFSET(vftbl_t, interfacetable[0]) -
2277                                                 sizeof(methodptr*) * lm->class->index;
2278
2279                                         s2 = sizeof(methodptr) * (lm - lm->class->methods);
2280
2281                                         d = md->returntype.type;
2282                                 }
2283
2284                                 M_ALD(REG_METHODPTR, rd->argintregs[0],
2285                                           OFFSET(java_objectheader, vftbl));
2286                                 M_ALD(REG_METHODPTR, REG_METHODPTR, s1);
2287                                 M_ALD(REG_PV, REG_METHODPTR, s2);
2288                                 M_MTCTR(REG_PV);
2289                                 M_JSR;
2290                                 disp = (s4) (cd->mcodeptr - cd->mcodebase);
2291                                 M_MFLR(REG_ITMP1);
2292                                 M_LDA(REG_PV, REG_ITMP1, -disp);
2293                                 break;
2294                         }
2295
2296                         /* d contains return type */
2297
2298                         if (d != TYPE_VOID) {
2299                                 if (IS_INT_LNG_TYPE(d)) {
2300                                         s1 = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2301                                         M_MOV(REG_RESULT, s1);
2302                                 } else {
2303                                         s1 = codegen_reg_of_dst(jd, iptr, REG_FRESULT);
2304                                         M_FLTMOVE(REG_FRESULT, s1);
2305                                 }
2306                                 emit_store_dst(jd, iptr, s1);
2307                         }
2308                         break;
2309
2310
2311                 case ICMD_CHECKCAST:  /* ..., objectref ==> ..., objectref            */
2312                                       /* val.a: (classinfo*) superclass               */
2313
2314                         /*  superclass is an interface:
2315                          *
2316                          *  OK if ((sub == NULL) ||
2317                          *         (sub->vftbl->interfacetablelength > super->index) &&
2318                          *         (sub->vftbl->interfacetable[-super->index] != NULL));
2319                          *
2320                          *  superclass is a class:
2321                          *
2322                          *  OK if ((sub == NULL) || (0
2323                          *         <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2324                          *         super->vftbl->diffvall));
2325                          */
2326
2327                         if (!(iptr->flags.bits & INS_FLAG_ARRAY)) {
2328                                 /* object type cast-check */
2329
2330                                 classinfo *super;
2331                                 s4         superindex;
2332
2333                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2334                                         super = NULL;
2335                                         superindex = 0;
2336                                 } else {
2337                                         super = iptr->sx.s23.s3.c.cls;
2338                                         superindex = super->index;
2339                                 }
2340
2341 #if defined(ENABLE_THREADS)
2342                                 codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2343 #endif
2344                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2345
2346                                 /* calculate interface checkcast code size */
2347
2348                                 s2 = 7;
2349                                 if (super == NULL)
2350                                         s2 += (opt_showdisassemble ? 1 : 0);
2351
2352                                 /* calculate class checkcast code size */
2353
2354                                 s3 = 9 + (s1 == REG_ITMP1);
2355                                 if (super == NULL)
2356                                         s3 += (opt_showdisassemble ? 1 : 0);
2357
2358                                 /* if class is not resolved, check which code to call */
2359
2360                                 if (super == NULL) {
2361                                         M_TST(s1);
2362                                         M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2363
2364                                         disp = dseg_add_s4(cd, 0);                     /* super->flags */
2365
2366                                         codegen_addpatchref(cd,
2367                                                                                 PATCHER_checkcast_instanceof_flags,
2368                                                                                 iptr->sx.s23.s3.c.ref,
2369                                                                                 disp);
2370
2371                                         if (opt_showdisassemble)
2372                                                 M_NOP;
2373
2374                                         M_ILD(REG_ITMP2, REG_PV, disp);
2375                                         M_AND_IMM(REG_ITMP2, ACC_INTERFACE, REG_ITMP2);
2376                                         M_BEQ(s2 + 1);
2377                                 }
2378
2379                                 /* interface checkcast code */
2380
2381                                 if ((super == NULL) || (super->flags & ACC_INTERFACE)) {
2382                                         if (super == NULL) {
2383                                                 codegen_addpatchref(cd,
2384                                                                                         PATCHER_checkcast_instanceof_interface,
2385                                                                                         iptr->sx.s23.s3.c.ref,
2386                                                                                         0);
2387                                                 if (opt_showdisassemble)
2388                                                         M_NOP;
2389
2390                                         } else {
2391                                                 M_TST(s1);
2392                                                 M_BEQ(s2);
2393                                         }
2394
2395                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2396                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, interfacetablelength));
2397                                         M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2398                                         M_BLE(0);
2399                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1?? */
2400                                         M_ALD(REG_ITMP3, REG_ITMP2,
2401                                                   OFFSET(vftbl_t, interfacetable[0]) -
2402                                                   superindex * sizeof(methodptr*));
2403                                         M_TST(REG_ITMP3);
2404                                         M_BEQ(0);
2405                                         codegen_add_classcastexception_ref(cd, s1);     /*XXX s1??*/
2406
2407                                         if (!super)
2408                                                 M_BR(s3);
2409                                 }
2410
2411                                 /* class checkcast code */
2412
2413                                 if ((super == NULL) || !(super->flags & ACC_INTERFACE)) {
2414                                         if (super == NULL) {
2415                                                 disp = dseg_add_address(cd, NULL);
2416                                                 codegen_addpatchref(cd, PATCHER_checkcast_class,
2417                                                                                         iptr->sx.s23.s3.c.ref,
2418                                                                                         disp);
2419                                                 if (opt_showdisassemble)
2420                                                         M_NOP;
2421                                         } else {
2422                                                 disp = dseg_add_address(cd, super->vftbl);
2423                                                 M_TST(s1);
2424                                                 M_BEQ(s3);
2425                                         }
2426
2427                                         M_ALD(REG_ITMP2, s1, OFFSET(java_objectheader, vftbl));
2428 #if defined(ENABLE_THREADS)
2429                                         codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2430 #endif
2431                                         M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2432                                         M_ALD(REG_ITMP2, REG_PV, disp);
2433                                         if (s1 != REG_ITMP1) {
2434                                                 M_ILD(REG_ITMP1, REG_ITMP2, OFFSET(vftbl_t, baseval));
2435                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2436 #if defined(ENABLE_THREADS)
2437                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2438 #endif
2439                                                 M_SUB(REG_ITMP3, REG_ITMP1, REG_ITMP3);
2440                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2441                                         } else {
2442                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, baseval));
2443                                                 M_SUB(REG_ITMP3, REG_ITMP2, REG_ITMP3);
2444                                                 M_EXTSW(REG_ITMP3, REG_ITMP3);
2445                                                 M_ALD(REG_ITMP2, REG_PV, disp);
2446                                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2447 #if defined(ENABLE_THREADS)
2448                                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2449 #endif
2450                                         }
2451                                         M_CMPU(REG_ITMP3, REG_ITMP2);
2452                                         M_BGT(0);
2453                                         codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2454                                 }
2455                                 d = codegen_reg_of_dst(jd, iptr, s1);
2456
2457                         } else {
2458                                 /* array type cast-check */
2459
2460                                 s1 = emit_load_s1(jd, iptr, rd->argintregs[0]);
2461                                 M_INTMOVE(s1, rd->argintregs[0]);
2462
2463
2464                                 if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2465                                         disp = dseg_add_address(cd, NULL);
2466                                         codegen_addpatchref(cd, PATCHER_builtin_arraycheckcast,
2467                                                                                 iptr->sx.s23.s3.c.ref,
2468                                                                                 disp);
2469
2470                                         if (opt_showdisassemble)
2471                                                 M_NOP;
2472                                 } else {
2473                                         disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2474                                 }
2475
2476                                 M_ALD(rd->argintregs[1], REG_PV, disp);
2477                                 disp = dseg_add_functionptr(cd, BUILTIN_arraycheckcast);
2478                                 M_ALD(REG_ITMP2, REG_PV, disp);
2479                                 M_ALD(REG_ITMP2, REG_ITMP2, 0); /* TOC */
2480                                 M_MTCTR(REG_ITMP2);
2481                                 M_JSR;
2482                                 M_TST(REG_RESULT);
2483                                 M_BEQ(0);
2484                                 codegen_add_classcastexception_ref(cd, s1); /* XXX s1? */
2485
2486                                 s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2487                                 d = codegen_reg_of_dst(jd, iptr, s1);
2488                         }
2489                         M_INTMOVE(s1, d);
2490                         emit_store_dst(jd, iptr, d);
2491                         break;
2492
2493                 case ICMD_INSTANCEOF: /* ..., objectref ==> ..., intresult            */
2494                                       /* val.a: (classinfo*) superclass               */
2495
2496                         /*  superclass is an interface:
2497                          *
2498                          *  return (sub != NULL) &&
2499                          *         (sub->vftbl->interfacetablelength > super->index) &&
2500                          *         (sub->vftbl->interfacetable[-super->index] != NULL);
2501                          *
2502                          *  superclass is a class:
2503                          *
2504                          *  return ((sub != NULL) && (0
2505                          *          <= (sub->vftbl->baseval - super->vftbl->baseval) <=
2506                          *          super->vftbl->diffvall));
2507                          */
2508
2509                         {
2510                         classinfo *super;
2511                         vftbl_t   *supervftbl;
2512                         s4         superindex;
2513
2514                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2515                                 super = NULL;
2516                                 superindex = 0;
2517                                 supervftbl = NULL;
2518                         }
2519                         else {
2520                                 super = iptr->sx.s23.s3.c.cls;
2521                                 superindex = super->index;
2522                                 supervftbl = super->vftbl;
2523                         }
2524
2525 #if defined(ENABLE_THREADS)
2526             codegen_threadcritrestart(cd, cd->mcodeptr - cd->mcodebase);
2527 #endif
2528                         s1 = emit_load_s1(jd, iptr, REG_ITMP1);
2529                         d = codegen_reg_of_dst(jd, iptr, REG_ITMP2);
2530                         if (s1 == d) {
2531                                 M_MOV(s1, REG_ITMP1);
2532                                 s1 = REG_ITMP1;
2533                         }
2534
2535                         /* calculate interface instanceof code size */
2536
2537                         s2 = 8;
2538                         if (!super)
2539                                 s2 += (opt_showdisassemble ? 1 : 0);
2540
2541                         /* calculate class instanceof code size */
2542
2543                         s3 = 10;
2544                         if (!super)
2545                                 s3 += (opt_showdisassemble ? 1 : 0);
2546
2547                         M_CLR(d);
2548
2549                         /* if class is not resolved, check which code to call */
2550
2551                         if (!super) {
2552                                 M_TST(s1);
2553                                 M_BEQ(3 + (opt_showdisassemble ? 1 : 0) + s2 + 1 + s3);
2554
2555                                 disp = dseg_add_unique_s4(cd, 0);                     /* super->flags */
2556
2557                                 codegen_addpatchref(cd, PATCHER_checkcast_instanceof_flags,
2558                                                                         iptr->sx.s23.s3.c.ref, disp);
2559
2560                                 if (opt_showdisassemble)
2561                                         M_NOP;
2562
2563                                 M_ILD(REG_ITMP3, REG_PV, disp);
2564                                 M_AND_IMM(REG_ITMP3, ACC_INTERFACE, REG_ITMP3);
2565                                 M_BEQ(s2 + 1);
2566                         }
2567
2568                         /* interface instanceof code */
2569
2570                         if (!super || (super->flags & ACC_INTERFACE)) {
2571                                 if (super) {
2572                                         M_TST(s1);
2573                                         M_BEQ(s2);
2574
2575                                 } else {
2576                                         codegen_addpatchref(cd,
2577                                                                                 PATCHER_checkcast_instanceof_interface,
2578                                                                                 iptr->sx.s23.s3.c.ref, 0);
2579
2580                                         if (opt_showdisassemble)
2581                                                 M_NOP;
2582                                 }
2583
2584                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2585                                 M_ILD(REG_ITMP3, REG_ITMP1, OFFSET(vftbl_t, interfacetablelength));
2586                                 M_LDATST(REG_ITMP3, REG_ITMP3, -superindex);
2587                                 M_BLE(4);
2588                                 M_ALD(REG_ITMP1, REG_ITMP1,
2589                                           OFFSET(vftbl_t, interfacetable[0]) -
2590                                           superindex * sizeof(methodptr*));
2591                                 M_TST(REG_ITMP1);
2592                                 M_BEQ(1);
2593                                 M_IADD_IMM(REG_ZERO, 1, d);
2594
2595                                 if (!super)
2596                                         M_BR(s3);
2597                         }
2598
2599                         /* class instanceof code */
2600
2601                         if (!super || !(super->flags & ACC_INTERFACE)) {
2602                                 disp = dseg_add_address(cd, supervftbl);
2603
2604                                 if (super) {
2605                                         M_TST(s1);
2606                                         M_BEQ(s3);
2607
2608                                 } else {
2609                                         codegen_addpatchref(cd, PATCHER_instanceof_class,
2610                                                                                 iptr->sx.s23.s3.c.ref,
2611                                                                                 disp);
2612
2613                                         if (opt_showdisassemble) {
2614                                                 M_NOP;
2615                                         }
2616                                 }
2617
2618                                 M_ALD(REG_ITMP1, s1, OFFSET(java_objectheader, vftbl));
2619                                 M_ALD(REG_ITMP2, REG_PV, disp);
2620 #if defined(ENABLE_THREADS)
2621                                 codegen_threadcritstart(cd, cd->mcodeptr - cd->mcodebase);
2622 #endif
2623                                 M_ILD(REG_ITMP1, REG_ITMP1, OFFSET(vftbl_t, baseval));
2624                                 M_ILD(REG_ITMP3, REG_ITMP2, OFFSET(vftbl_t, baseval));
2625                                 M_ILD(REG_ITMP2, REG_ITMP2, OFFSET(vftbl_t, diffval));
2626 #if defined(ENABLE_THREADS)
2627                                 codegen_threadcritstop(cd, cd->mcodeptr - cd->mcodebase);
2628 #endif
2629                                 M_SUB(REG_ITMP1, REG_ITMP3, REG_ITMP1);
2630                                 M_CMPU(REG_ITMP1, REG_ITMP2);
2631                                 M_CLR(d);
2632                                 M_BGT(1);
2633                                 M_IADD_IMM(REG_ZERO, 1, d);
2634                         }
2635                         emit_store_dst(jd, iptr, d);
2636                         }
2637                         break;
2638
2639                 case ICMD_MULTIANEWARRAY:/* ..., cnt1, [cnt2, ...] ==> ..., arrayref  */
2640
2641                         /* check for negative sizes and copy sizes to stack if necessary  */
2642
2643                         MCODECHECK((iptr->s1.argcount << 1) + 64);
2644
2645                         for (s1 = iptr->s1.argcount; --s1 >= 0; ) {
2646
2647                                 var = VAR(iptr->sx.s23.s2.args[s1]);
2648
2649                                 /* copy SAVEDVAR sizes to stack */
2650
2651                                 if (!(var->flags & PREALLOC)) {
2652                                         s2 = emit_load(jd, iptr, var, REG_ITMP1);
2653 #if defined(__DARWIN__)
2654                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + INT_ARG_CNT) * 8);
2655 #else
2656                                         M_LST(s2, REG_SP, LA_SIZE + (s1 + 3) * 8);
2657 #endif
2658                                 }
2659                         }
2660
2661                         /* a0 = dimension count */
2662
2663                         ICONST(rd->argintregs[0], iptr->s1.argcount);
2664
2665                         /* is patcher function set? */
2666
2667                         if (INSTRUCTION_IS_UNRESOLVED(iptr)) {
2668                                 disp = dseg_add_address(cd, NULL);
2669
2670                                 codegen_addpatchref(cd, PATCHER_builtin_multianewarray,
2671                                                                         iptr->sx.s23.s3.c.ref, disp);
2672
2673                                 if (opt_showdisassemble)
2674                                         M_NOP;
2675
2676                         } else {
2677                                 disp = dseg_add_address(cd, iptr->sx.s23.s3.c.cls);
2678                         }
2679
2680                         /* a1 = arraydescriptor */
2681
2682                         M_ALD(rd->argintregs[1], REG_PV, disp);
2683
2684                         /* a2 = pointer to dimensions = stack pointer */
2685
2686 #if defined(__DARWIN__)
2687                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + INT_ARG_CNT * 8);
2688 #else
2689                         M_LDA(rd->argintregs[2], REG_SP, LA_SIZE + 3 * 8);
2690 #endif
2691
2692                         disp = dseg_add_functionptr(cd, BUILTIN_multianewarray);
2693                         M_ALD(REG_ITMP3, REG_PV, disp);
2694                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2695                         M_MTCTR(REG_ITMP3);
2696                         M_JSR;
2697
2698                         /* check for exception before result assignment */
2699
2700                         M_CMPI(REG_RESULT, 0);
2701                         M_BEQ(0);
2702                         codegen_add_fillinstacktrace_ref(cd);
2703
2704                         d = codegen_reg_of_dst(jd, iptr, REG_RESULT);
2705                         M_INTMOVE(REG_RESULT, d);
2706                         emit_store_dst(jd, iptr, d);
2707                         break;
2708
2709                 default:
2710                         exceptions_throw_internalerror("Unknown ICMD %d during code generation",
2711                                                                                    iptr->opc);
2712                         return false;
2713         } /* switch */
2714
2715         } /* for instruction */
2716
2717         } /* if (bptr -> flags >= BBREACHED) */
2718         } /* for basic block */
2719
2720         dseg_createlinenumbertable(cd);
2721
2722
2723         /* generate exception and patcher stubs */
2724
2725         {
2726                 exceptionref *eref;
2727                 patchref     *pref;
2728                 u4            mcode;
2729                 u1           *savedmcodeptr;
2730                 u1           *tmpmcodeptr;
2731
2732                 savedmcodeptr = NULL;
2733
2734                 /* generate exception stubs */
2735
2736                 for (eref = cd->exceptionrefs; eref != NULL; eref = eref->next) {
2737                         md_codegen_patch_branch(cd, eref->branchpos, cd->mcodeptr - cd->mcodebase);
2738
2739                         MCODECHECK(100);
2740
2741                         /* Check if the exception is an
2742                            ArrayIndexOutOfBoundsException.  If so, move index register
2743                            into REG_ITMP1. */
2744
2745                         if (eref->reg != -1)
2746                                 M_MOV(eref->reg, REG_ITMP1);
2747
2748                         /* calcuate exception address */
2749
2750                         M_LDA(REG_ITMP2_XPC, REG_PV, eref->branchpos - 4);
2751
2752                         /* move function to call into REG_ITMP3 */
2753
2754                         disp = dseg_add_functionptr(cd, eref->function);
2755                         M_ALD(REG_ITMP3, REG_PV, disp);
2756                         M_ALD(REG_ITMP3, REG_ITMP3, 0); /* TOC */
2757
2758                         if (savedmcodeptr != NULL) {
2759                                 disp = ((u4 *) savedmcodeptr) - (((u4 *) cd->mcodeptr) + 1);
2760                                 M_BR(disp);
2761
2762                         } else {
2763                                 savedmcodeptr = cd->mcodeptr;
2764
2765                                 if (jd->isleafmethod) {
2766                                         M_MFLR(REG_ZERO);
2767                                         M_AST(REG_ZERO, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2768                                 }
2769
2770                                 M_MOV(REG_PV, rd->argintregs[0]);
2771                                 M_MOV(REG_SP, rd->argintregs[1]);
2772
2773                                 if (jd->isleafmethod)
2774                                         M_MOV(REG_ZERO, rd->argintregs[2]);
2775                                 else
2776                                         M_ALD(rd->argintregs[2],
2777                                                   REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2778
2779                                 M_MOV(REG_ITMP2_XPC, rd->argintregs[3]);
2780                                 M_MOV(REG_ITMP1, rd->argintregs[4]);
2781
2782                                 M_STDU(REG_SP, REG_SP, -(LA_SIZE + 6 * 8));
2783                                 M_AST(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2784
2785                                 M_MTCTR(REG_ITMP3);
2786                                 M_JSR;
2787                                 M_MOV(REG_RESULT, REG_ITMP1_XPTR);
2788
2789                                 M_ALD(REG_ITMP2_XPC, REG_SP, LA_SIZE + 5 * 8);
2790                                 M_LADD_IMM(REG_SP, LA_SIZE + 6 * 8, REG_SP);
2791
2792                                 if (jd->isleafmethod) {
2793                                         /* XXX FIXME: REG_ZERO can cause problems here! */
2794                                         assert(cd->stackframesize * 8 <= 32767);
2795
2796                                         M_ALD(REG_ZERO, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
2797                                         M_MTLR(REG_ZERO);
2798                                 }
2799
2800                                 disp = dseg_add_functionptr(cd, asm_handle_exception);
2801                                 M_ALD(REG_ITMP3, REG_PV, disp);
2802                                 M_MTCTR(REG_ITMP3);
2803                                 M_RTS;
2804                         }
2805                 }
2806
2807
2808                 /* generate code patching stub call code */
2809
2810                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
2811                         /* check code segment size */
2812
2813                         MCODECHECK(16);
2814
2815                         /* Get machine code which is patched back in later. The
2816                            call is 1 instruction word long. */
2817
2818                         tmpmcodeptr = (u1 *) (cd->mcodebase + pref->branchpos);
2819
2820                         mcode = *((u4 *) tmpmcodeptr);
2821
2822                         /* Patch in the call to call the following code (done at
2823                            compile time). */
2824
2825                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
2826                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
2827
2828                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
2829                         M_BR(disp);
2830
2831                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
2832
2833                         /* create stack frame - keep stack 16-byte aligned */
2834
2835                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
2836
2837                         /* calculate return address and move it onto the stack */
2838
2839                         M_LDA(REG_ITMP3, REG_PV, pref->branchpos);
2840                         M_AST_INTERN(REG_ITMP3, REG_SP, 5 * 8);
2841
2842                         /* move pointer to java_objectheader onto stack */
2843
2844 #if defined(ENABLE_THREADS)
2845                         /* order reversed because of data segment layout */
2846
2847                         (void) dseg_add_unique_address(cd, NULL);                         /* flcword    */
2848                         (void) dseg_add_unique_address(cd, lock_get_initial_lock_word()); /* monitorPtr */
2849                         disp = dseg_add_unique_address(cd, NULL);                         /* vftbl      */
2850
2851                         M_LDA(REG_ITMP3, REG_PV, disp);
2852                         M_AST_INTERN(REG_ITMP3, REG_SP, 4 * 8);
2853 #else
2854                         /* do nothing */
2855 #endif
2856
2857                         /* move machine code onto stack */
2858
2859                         disp = dseg_add_unique_s4(cd, mcode);
2860                         M_ILD(REG_ITMP3, REG_PV, disp);
2861                         M_IST_INTERN(REG_ITMP3, REG_SP, 3 * 8);
2862
2863                         /* move class/method/field reference onto stack */
2864
2865                         disp = dseg_add_unique_address(cd, pref->ref);
2866                         M_ALD(REG_ITMP3, REG_PV, disp);
2867                         M_AST_INTERN(REG_ITMP3, REG_SP, 2 * 8);
2868
2869                         /* move data segment displacement onto stack */
2870
2871                         disp = dseg_add_functionptr(cd, pref->disp);
2872                         M_LLD(REG_ITMP3, REG_PV, disp);
2873                         M_IST_INTERN(REG_ITMP3, REG_SP, 1 * 8);
2874
2875                         /* move patcher function pointer onto stack */
2876
2877                         disp = dseg_add_functionptr(cd, pref->patcher);
2878                         M_ALD(REG_ITMP3, REG_PV, disp);
2879                         M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 8);
2880
2881                         disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
2882                         M_ALD(REG_ITMP3, REG_PV, disp);
2883                         M_MTCTR(REG_ITMP3);
2884                         M_RTS;
2885                 }
2886
2887                 /* generate replacement-out stubs */
2888
2889 #if 0
2890                 {
2891                         int i;
2892
2893                         replacementpoint = jd->code->rplpoints;
2894
2895                         for (i = 0; i < jd->code->rplpointcount; ++i, ++replacementpoint) {
2896                                 /* check code segment size */
2897
2898                                 MCODECHECK(100);
2899
2900                                 /* note start of stub code */
2901
2902                                 replacementpoint->outcode = (u1 *) (cd->mcodeptr - cd->mcodebase);
2903
2904                                 /* make machine code for patching */
2905
2906                                 tmpmcodeptr  = cd->mcodeptr;
2907                                 cd->mcodeptr = (u1 *) &(replacementpoint->mcode) + 1 /* big-endian */;
2908
2909                                 disp = (ptrint)((s4*)replacementpoint->outcode - (s4*)replacementpoint->pc) - 1;
2910                                 M_BR(disp);
2911
2912                                 cd->mcodeptr = tmpmcodeptr;
2913
2914                                 /* create stack frame - keep 16-byte aligned */
2915
2916                                 M_AADD_IMM(REG_SP, -4 * 4, REG_SP);
2917
2918                                 /* push address of `rplpoint` struct */
2919
2920                                 disp = dseg_add_unique_address(cd, replacementpoint);
2921                                 M_ALD(REG_ITMP3, REG_PV, disp);
2922                                 M_AST_INTERN(REG_ITMP3, REG_SP, 0 * 4);
2923
2924                                 /* jump to replacement function */
2925
2926                                 disp = dseg_add_unique_address(cd, asm_replacement_out);
2927                                 M_ALD(REG_ITMP3, REG_PV, disp);
2928                                 M_MTCTR(REG_ITMP3);
2929                                 M_RTS;
2930                         }
2931                 }
2932 #endif
2933         }
2934
2935         codegen_finish(jd);
2936
2937         /* everything's ok */
2938
2939         return true;
2940 }
2941
2942
2943 /* createcompilerstub **********************************************************
2944
2945    Creates a stub routine which calls the compiler.
2946
2947 *******************************************************************************/
2948
2949 #define COMPILERSTUB_DATASIZE    3 * SIZEOF_VOID_P
2950 #define COMPILERSTUB_CODESIZE    4 * 4
2951
2952 #define COMPILERSTUB_SIZE        COMPILERSTUB_DATASIZE + COMPILERSTUB_CODESIZE
2953
2954
2955 u1 *createcompilerstub(methodinfo *m)
2956 {
2957         u1          *s;                     /* memory to hold the stub            */
2958         ptrint      *d;
2959         codegendata *cd;
2960         s4           dumpsize;
2961
2962         s = CNEW(u1, COMPILERSTUB_SIZE);
2963
2964         /* set data pointer and code pointer */
2965
2966         d = (ptrint *) s;
2967         s = s + COMPILERSTUB_DATASIZE;
2968
2969         /* mark start of dump memory area */
2970
2971         dumpsize = dump_size();
2972
2973         cd = DNEW(codegendata);
2974         cd->mcodeptr = s;
2975
2976         /* Store the codeinfo pointer in the same place as in the
2977            methodheader for compiled methods. */
2978
2979         d[0] = (ptrint) asm_call_jit_compiler;
2980         d[1] = (ptrint) m;
2981         d[2] = (ptrint) &d[1];                                    /* fake code->m */
2982
2983         M_ALD_INTERN(REG_ITMP1, REG_PV, -2 * SIZEOF_VOID_P);
2984         M_ALD_INTERN(REG_PV, REG_PV, -3 * SIZEOF_VOID_P);
2985         M_MTCTR(REG_PV);
2986         M_RTS;
2987
2988         md_cacheflush((u1 *) d, COMPILERSTUB_SIZE);
2989
2990 #if defined(ENABLE_STATISTICS)
2991         if (opt_stat)
2992                 count_cstub_len += COMPILERSTUB_SIZE;
2993 #endif
2994
2995         /* release dump area */
2996
2997         dump_release(dumpsize);
2998
2999         return s;
3000 }
3001
3002
3003 /* createnativestub ************************************************************
3004
3005    Creates a stub routine which calls a native method.
3006
3007 *******************************************************************************/
3008
3009 u1 *createnativestub(functionptr f, jitdata *jd, methoddesc *nmd)
3010 {
3011         methodinfo   *m;
3012         codeinfo     *code;
3013         codegendata  *cd;
3014         registerdata *rd;
3015         methoddesc   *md;
3016         s4            nativeparams;
3017         s4            i, j;                 /* count variables                    */
3018         s4            t;
3019         s4            s1, s2, disp;
3020         s4            funcdisp;
3021
3022         /* get required compiler data */
3023
3024         m    = jd->m;
3025         code = jd->code;
3026         cd   = jd->cd;
3027         rd   = jd->rd;
3028
3029         /* set some variables */
3030
3031         md = m->parseddesc;
3032         nativeparams = (m->flags & ACC_STATIC) ? 2 : 1;
3033
3034         /* calculate stackframe size */
3035
3036         cd->stackframesize =
3037                 sizeof(stackframeinfo) / SIZEOF_VOID_P +
3038                 sizeof(localref_table) / SIZEOF_VOID_P +
3039                 4 +                            /* 4 stackframeinfo arguments (darwin)*/
3040                 nmd->paramcount  +
3041                 nmd->memuse;
3042
3043 /*      cd->stackframesize = (cd->stackframesize + 3) & ~3;*/ /* keep stack 16-byte aligned */
3044
3045         /* create method header */
3046
3047         (void) dseg_add_unique_address(cd, code);                      /* CodeinfoPointer */
3048         (void) dseg_add_unique_s4(cd, cd->stackframesize * 8);             /* FrameSize       */
3049         (void) dseg_add_unique_s4(cd, 0);                              /* IsSync          */
3050         (void) dseg_add_unique_s4(cd, 0);                              /* IsLeaf          */
3051         (void) dseg_add_unique_s4(cd, 0);                              /* IntSave         */
3052         (void) dseg_add_unique_s4(cd, 0);                              /* FltSave         */
3053         (void) dseg_addlinenumbertablesize(cd);
3054         (void) dseg_add_unique_s4(cd, 0);                              /* ExTableSize     */
3055
3056         /* generate code */
3057
3058         M_MFLR(REG_ZERO);
3059         M_AST_INTERN(REG_ZERO, REG_SP, LA_LR_OFFSET);
3060         M_STDU(REG_SP, REG_SP, -(cd->stackframesize * 8));
3061
3062 #if !defined(NDEBUG)
3063         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3064                 emit_verbosecall_enter(jd);
3065         }
3066 #endif
3067         /* get function address (this must happen before the stackframeinfo) */
3068
3069         funcdisp = dseg_add_functionptr(cd, f);
3070
3071 #if !defined(WITH_STATIC_CLASSPATH)
3072         if (f == NULL) {
3073                 codegen_addpatchref(cd, PATCHER_resolve_native, m, funcdisp);
3074
3075                 if (opt_showdisassemble)
3076                         M_NOP;
3077         }
3078 #endif
3079
3080         /* save integer and float argument registers */
3081
3082         j = 0;
3083
3084         for (i = 0; i < md->paramcount; i++) {
3085                 t = md->paramtypes[i].type;
3086
3087                 if (IS_INT_LNG_TYPE(t)) {
3088                         if (!md->params[i].inmemory) {
3089                                 s1 = md->params[i].regoff;
3090                                 M_LST(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
3091                                 j++;
3092                         }
3093                 }
3094         }
3095
3096         for (i = 0; i < md->paramcount; i++) {
3097                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3098                         if (!md->params[i].inmemory) {
3099                                 s1 = md->params[i].regoff;
3100                                 M_DST(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4*8 + j * 8);
3101                                 j++;
3102                         }
3103                 }
3104         }
3105
3106         /* create native stack info */
3107
3108         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
3109         M_MOV(REG_PV, rd->argintregs[1]);
3110         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[2]);
3111         M_ALD(rd->argintregs[3], REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
3112         disp = dseg_add_functionptr(cd, codegen_start_native_call);
3113
3114         M_ALD(REG_ITMP1, REG_PV, disp);
3115         M_ALD(REG_ITMP1, REG_ITMP1, 0);         /* TOC */
3116         M_MTCTR(REG_ITMP1);
3117         M_JSR;
3118
3119         /* restore integer and float argument registers */
3120
3121         j = 0;
3122
3123         for (i = 0; i < md->paramcount; i++) {
3124                 t = md->paramtypes[i].type;
3125
3126                 if (IS_INT_LNG_TYPE(t)) {
3127                         if (!md->params[i].inmemory) {
3128                                 s1 = md->params[i].regoff;
3129                                 M_LLD(rd->argintregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3130                                 j++;
3131                         }
3132                 }
3133         }
3134
3135         for (i = 0; i < md->paramcount; i++) {
3136                 if (IS_FLT_DBL_TYPE(md->paramtypes[i].type)) {
3137                         if (!md->params[i].inmemory) {
3138                                 s1 = md->params[i].regoff;
3139                                 M_DLD(rd->argfltregs[s1], REG_SP, LA_SIZE + PA_SIZE + 4 * 8 + j * 8);
3140                                 j++;
3141                         }
3142                 }
3143         }
3144
3145         /* copy or spill arguments to new locations */
3146
3147         for (i = md->paramcount - 1, j = i + nativeparams; i >= 0; i--, j--) {
3148                 t = md->paramtypes[i].type;
3149
3150                 if (IS_INT_LNG_TYPE(t)) {
3151                         if (!md->params[i].inmemory) {
3152                                 s1 = rd->argintregs[md->params[i].regoff];
3153
3154                                 if (!nmd->params[j].inmemory) {
3155                                         s2 = rd->argintregs[nmd->params[j].regoff];
3156                                         M_INTMOVE(s1, s2);
3157                                 } else {
3158                                         s2 = nmd->params[j].regoff;
3159                                         M_LST(s1, REG_SP, s2 * 8);
3160                                 }
3161
3162                         } else {
3163                                 s1 = md->params[i].regoff + cd->stackframesize;
3164                                 s2 = nmd->params[j].regoff;
3165
3166                                 M_LLD(REG_ITMP1, REG_SP, s1 * 8);
3167                                 M_LST(REG_ITMP1, REG_SP, s2 * 8);
3168                         }
3169
3170                 } else {
3171                         /* We only copy spilled float arguments, as the float
3172                            argument registers keep unchanged. */
3173
3174                         if (md->params[i].inmemory) {
3175                                 s1 = md->params[i].regoff + cd->stackframesize;
3176                                 s2 = nmd->params[j].regoff;
3177
3178                                 M_DLD(REG_FTMP1, REG_SP, s1 * 8);
3179
3180                                 if (IS_2_WORD_TYPE(t)) {
3181                                         M_DST(REG_FTMP1, REG_SP, s2 * 8);
3182                                 } else {
3183                                         M_FST(REG_FTMP1, REG_SP, s2 * 8 + 4);
3184                                 }
3185                         }
3186                 }
3187         }
3188
3189         /* put class into second argument register */
3190
3191         if (m->flags & ACC_STATIC) {
3192                 disp = dseg_add_unique_address(cd, m->class);
3193                 M_ALD(rd->argintregs[1], REG_PV, disp);
3194         }
3195
3196         /* put env into first argument register */
3197
3198         disp = dseg_add_unique_address(cd, _Jv_env);
3199         M_ALD(rd->argintregs[0], REG_PV, disp);
3200
3201         /* generate the actual native call */
3202         /* native functions have a different TOC for sure */
3203
3204         M_AST(REG_TOC, REG_SP, 40);     /* save old TOC */
3205         M_ALD(REG_ITMP3, REG_PV, funcdisp);
3206         M_ALD(REG_TOC, REG_ITMP3, 8);   /* load TOC from func. descriptor */
3207         M_ALD(REG_ITMP3, REG_ITMP3, 0);
3208         M_MTCTR(REG_ITMP3);
3209         M_JSR;
3210         M_ALD(REG_TOC, REG_SP, 40);     /* restore TOC */
3211
3212         /* save return value */
3213
3214         if (md->returntype.type != TYPE_VOID) {
3215                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3216                         M_LST(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3217                 }
3218                 else {
3219 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
3220                                 M_DST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3221 /*                      else
3222                                 M_FST(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);  */ /* FIXME, needed F XXX?*/
3223
3224                 }
3225         }
3226
3227         /* print call trace */
3228 #if ! defined(NDEBGUU)
3229         if (JITDATA_HAS_FLAG_VERBOSECALL(jd)) {
3230                 emit_verbosecall_exit(jd);
3231         }
3232 #endif
3233         /* remove native stackframe info */
3234
3235         M_AADD_IMM(REG_SP, cd->stackframesize * 8, rd->argintregs[0]);
3236         disp = dseg_add_functionptr(cd, codegen_finish_native_call);
3237         M_ALD(REG_ITMP1, REG_PV, disp);
3238         M_ALD(REG_ITMP1, REG_ITMP1, 0); /* XXX what about TOC? */
3239         M_MTCTR(REG_ITMP1);
3240         M_JSR;
3241         M_MOV(REG_RESULT, REG_ITMP1_XPTR);
3242
3243         /* restore return value */
3244
3245         if (md->returntype.type != TYPE_VOID) {
3246                 if (IS_INT_LNG_TYPE(md->returntype.type)) {
3247                         M_LLD(REG_RESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3248                 }
3249                 else {
3250 /*                      if (IS_2_WORD_TYPE(md->returntype.type)) */
3251                                 M_DLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8);
3252 /*                      else
3253                                 M_FLD(REG_FRESULT, REG_SP, LA_SIZE + PA_SIZE + 1 * 8); F XXX
3254                                 */
3255                 }
3256         }
3257
3258         M_ALD(REG_ITMP2_XPC, REG_SP, cd->stackframesize * 8 + LA_LR_OFFSET);
3259         M_MTLR(REG_ITMP2_XPC);
3260         M_LDA(REG_SP, REG_SP, cd->stackframesize * 8); /* remove stackframe           */
3261
3262         /* check for exception */
3263
3264         M_TST(REG_ITMP1_XPTR);
3265         M_BNE(1);                           /* if no exception then return        */
3266
3267         M_RET;
3268
3269         /* handle exception */
3270
3271         M_LADD_IMM(REG_ITMP2_XPC, -4, REG_ITMP2_XPC);  /* exception address       */
3272
3273         disp = dseg_add_functionptr(cd, asm_handle_nat_exception);
3274         M_ALD(REG_ITMP3, REG_PV, disp);
3275         M_MTCTR(REG_ITMP3);
3276         M_RTS;
3277
3278         /* generate patcher stub call code */
3279
3280         {
3281                 patchref *pref;
3282                 u4        mcode;
3283                 u1       *savedmcodeptr;
3284                 u1       *tmpmcodeptr;
3285
3286                 for (pref = cd->patchrefs; pref != NULL; pref = pref->next) {
3287                         /* Get machine code which is patched back in later. The
3288                            call is 1 instruction word long. */
3289
3290                         tmpmcodeptr = cd->mcodebase + pref->branchpos;
3291
3292                         mcode = *((u4 *) tmpmcodeptr);
3293
3294                         /* Patch in the call to call the following code (done at
3295                            compile time). */
3296
3297                         savedmcodeptr = cd->mcodeptr;   /* save current mcodeptr          */
3298                         cd->mcodeptr  = tmpmcodeptr;    /* set mcodeptr to patch position */
3299
3300                         disp = ((u4 *) savedmcodeptr) - (((u4 *) tmpmcodeptr) + 1);
3301                         M_BL(disp);
3302
3303                         cd->mcodeptr = savedmcodeptr;   /* restore the current mcodeptr   */
3304
3305                         /* create stack frame - keep stack 16-byte aligned */
3306
3307                         M_AADD_IMM(REG_SP, -8 * 8, REG_SP);
3308
3309                         /* move return address onto stack */
3310
3311                         M_MFLR(REG_ZERO);
3312                         M_AST(REG_ZERO, REG_SP, 5 * 8);
3313
3314                         /* move pointer to java_objectheader onto stack */
3315
3316 #if defined(ENABLE_THREADS)
3317                         /* order reversed because of data segment layout */
3318
3319                         (void) dseg_add_unique_address(cd, NULL);                         /* flcword    */
3320                         (void) dseg_add_unique_address(cd, lock_get_initial_lock_word()); /* monitorPtr */
3321                         disp = dseg_add_unique_address(cd, NULL);                         /* vftbl      */
3322
3323                         M_LDA(REG_ITMP3, REG_PV, disp);
3324                         M_AST(REG_ITMP3, REG_SP, 4 * 8);
3325 #else
3326                         /* do nothing */
3327 #endif
3328
3329                         /* move machine code onto stack */
3330
3331                         disp = dseg_add_unique_s4(cd, mcode);
3332                         M_ILD(REG_ITMP3, REG_PV, disp);
3333                         M_IST(REG_ITMP3, REG_SP, 3 * 8);
3334
3335                         /* move class/method/field reference onto stack */
3336
3337                         disp = dseg_add_unique_address(cd, pref->ref);
3338                         M_ALD(REG_ITMP3, REG_PV, disp);
3339                         M_AST(REG_ITMP3, REG_SP, 2 * 8);
3340
3341                         /* move data segment displacement onto stack */
3342
3343                         disp = dseg_add_unique_s4(cd, pref->disp);
3344                         M_ILD(REG_ITMP3, REG_PV, disp);
3345                         M_IST(REG_ITMP3, REG_SP, 1 * 8);
3346
3347                         /* move patcher function pointer onto stack */
3348
3349                         disp = dseg_add_functionptr(cd, pref->patcher);
3350                         M_ALD(REG_ITMP3, REG_PV, disp);
3351                         M_AST(REG_ITMP3, REG_SP, 0 * 8);
3352
3353                         disp = dseg_add_functionptr(cd, asm_patcher_wrapper);
3354                         M_ALD(REG_ITMP3, REG_PV, disp);
3355                         M_MTCTR(REG_ITMP3);
3356                         M_RTS;
3357                 }
3358         }
3359
3360         codegen_finish(jd);
3361
3362         return code->entrypoint;
3363 }
3364
3365
3366
3367
3368 /*
3369  * These are local overrides for various environment variables in Emacs.
3370  * Please do not remove this and leave it at the end of the file, where
3371  * Emacs will automagically detect them.
3372  * ---------------------------------------------------------------------
3373  * Local variables:
3374  * mode: c
3375  * indent-tabs-mode: t
3376  * c-basic-offset: 4
3377  * tab-width: 4
3378  * End:
3379  * vim:noexpandtab:sw=4:ts=4:
3380  */